(2) Any incident during engine operation in which the propeller impacts a solid object that causes a How about 50 rpm? It has been determined further that this action involves an emergency regulation under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979). In our response to readers we quote the latest manufacturer directives and FAA guidance, and add our perspectives and experience to hopefully help the owner feel his or her ultimate decision is the right and legal one. dont do it. Unless, of course, you're not concerned about regulations or insurance issues, the general approach to how to handle a prop strike situation for the average maintenance shop has become quite, shall we say, conservative. documents in the last year, 973 Each document posted on the site includes a link to the All communications received on or before the closing date for comments will be considered, and this rule may be amended in light of the comments received. One, "A sudden rpm drop while impacting water, tall grass, or similar yielding medium, where propeller damage is not normally incurred." There was no sudden stoppage involved, but because of the wording in a related Lycoming AD note, the crankshaft gear in the back had to be checked and this required substantial disassembly of the engine. I took the ad to an engine overhaul shop, Corona Cylinder and Engine Overhaul in Corona, California, and had the owner, Joe Anderson, call the person selling the engine. (2) Any incident during engine operation in which the propeller impacts a solid object that causes a drop in revolutions per minute (RPM) and also requires structural repair of the propeller (incidents requiring only paint touch-up are not included). Start dateSep 28, 2016. (2) After obtaining the results of the core sample evaluation, disposition the crankshaft as follows: (i) If TCM notifies you that the crankshaft is not serviceable, replace the crankshaft with a serviceable crankshaft of the same part number before further flight. In another incident a prop hit a small rock, which had been dislodged and thrown back by a larger aircraft. The service information referenced in this AD may be obtained from Teledyne Continental Motors, PO Box 90, Mobile, AL 36601; telephone toll free 1-888-200-7565, or on the TCM internet site www.tcmlink.com. This information may be examined at the FAA, New England Region, Office of the Regional Counsel, 12 New England Executive Park, Burlington, MA; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. There is another FAA document with additional specifics for many Lycoming engines, and this is found in AD 2004-10-14, which defines and differentiates a prop strike and sudden prop stoppage and references Lycoming SB 475C, Jan 2003 as the supporting manufacturer document for the inspection and applicable engines. You can bet the fellow who hit the traffic cone never made a logbook entry unless the engine had to be repaired. A propeller strike is: (1) any incident, whether or not the engine is operating, that requires repair to the propeller other than minor dressing of the blades as set forth in Part 1, B of The President of the United States communicates information on holidays, commemorations, special observances, trade, and policy through Proclamations. They are often ignored in the prop-strike evaluation, yet they have prescribed inspection criteria even if involved in only a sudden stoppage. So, in a roundabout way by the last paragraph, Lycoming is saying its the repair facilitys call unless your engine is one found in the later AD 2004-10-14, which applies to a lot of Lycoming engines. Service Bulletin 533A has the pertinent Lycoming prop-strike definitions for all Lycoming direct drive engines. To start my investigation, I wanted the official definition of a prop strike. For engines that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (d) of this AD. On the record, owners said that if someone came into their shop and said he or she had an aircraft with a prop strike, they would follow the procedures outlined above to the letter. documents in the last year, 28 The opinions differ with each individual, and what maintenance technicians would do personally is quite often at odds with their professional opinions. Prop strike. These two words are guaranteed to make any pilot wince. 2023 Endeavor Business Media, LLC. The Lycoming information is more complicated and equivocating than the TCM directives in our opinion, as well explain. If you've attended AirVenture or any of the other major airshows, you've heard it. documents in the last year, 84 publication in the future. Compliance with this service bulletin is mandatory per AD 91-14-22. After defining a prop strike, TCM's SB 96-11A states: "A. Propeller strike inspections. Following any propeller strike complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to further operation. Inspect all engine accessories in accordance with the manufacturer's instructions." that agencies use to create their documents. Lycoming's Service Bulletin 475B requires that in the event that the engine has experienced a propeller strike, inspection and possible rework of the accessory gear train as well as the rear of the engine's crankshaft is required. of the issuing agency. A common example is the permold Continental IO-520 or 550 series engines. the official SGML-based PDF version on govinfo.gov, those relying on it for Although this action is in the form of a final rule that involves requirements affecting flight safety and, thus, was not preceded by notice and an opportunity for public comment, comments are invited on this rule. Prior to any ground operation of the engine assure that the propeller flange and the crankshaft flange area are free of any crack indications in addition to the engine component inspection. Ken Tunnel of Lycon Aircraft Engines in Visalia, California, an engine facility used by a number of owners of show airplanes, said, "There's no way you can tell if there's any damage regardless of the circumstances. by the Federal Energy Regulatory Commission 13132, because it would not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. Note the recurring theme of the loss of rpm or sudden stoppage of the engine runs as a key criteria for an internal inspection among the makers as well as the FAA. Inspect all engine accessories in accordance with the manufacturer's instructions.". Commenters wishing the FAA to acknowledge receipt of their comments submitted in response to this notice must submit a self-addressed, stamped postcard on which the following statement is made: Comments to Docket Number 2000-NE-16-AD. The postcard will be date stamped and returned to the commenter. better and aid in comparing the online edition to the print edition. We have personally seen an instance where a plane lost the entire prop in flight following a so called minor prior strike of hitting a runway light while taxing, but the crank on the IO-520 was only checked for run-out and prop repaired (and this was a Part 135 operated plane). S/N: 217920-73J Contact Sales Staff - TEXAS AIR SALVAGE, - located Bloomburg, TX 75556 United States Telephone: 9032557878 Posted January 9, 2023 Show all Ads posted by this Advertiser Recommend This Ad to a Friend Plus, unless you were watching the tach, how would you know? FAA# JL4R288M | EASA.145.4115 | Toll Free: 800-282-3202 | 954-970-3200 What looks like light damage may sometimes result in something broken or highly stressed inside, while a major collision shows nothing wrong after it's been torn down." Its also important to point out that this is not the only Lycoming bulletinthat discusses prop strikes. Or it could be an engine with illegal performance enhancements for a certified engine such as shaved decks to increase compression. Effective December 12, 2000. Inspect all engine driven accessories in accordance with the manufacturers maintenance instructions. Located in Burlington, North Carolina, we provide an array of aircraft maintenance services, including engine, cylinder, and propeller overhaul and repair. Also, some engines with a gear-driven alternator have a large, relatively thin and very vulnerable gear bolted to the forward end of the crankshaft. The $8,500 differential is not insignificant. (j) The preceding definitions include situations where an aircraft is stationary and the landing gear collapses causing one or more blades to be substantially bent, or where a hangar door (or other object) strikes the propeller blade. The FAA definition of a sudden stoppage, is the engine stopping suddenly in under one rpm. Are there any hidden costs? informational resource until the Administrative Committee of the Federal TCM's SB 97-6 specifies the mandatory items that must be replaced when the engine is torn down. Another thing to look for in the logs is a prolonged period of inactivity, such as years between annual inspections and oil changes. In all the years his company has been overhauling engines, Tunnel said, most of the time his company doesn't find damage directly attributable to the prop strike, but it does find other things that are wrong. Definition of Propeller Strike (i) For the purposes of this AD, a propeller strike is defined as follows: (1) Any incident, whether or not the engine is operating, that requires repair to the propeller other than minor dressing of the blades. You will note TCM does not get into the concept of sudden stoppages possibly being handled differently as Lycoming does. This can cause major internal engine damage without visible prop damage. About the Federal Register daily Federal Register on FederalRegister.gov will remain an unofficial The authority citation for part 39 continues to read as follows: Authority: Compliance with the requirements of this AD is required within the next 10 hours time-in-service from the effective date of this AD, unless already done. Still others will only pay for the labor to do the job and will not pay for any parts. the material on FederalRegister.gov is accurately displayed, consistent with for the aircraft owner. are not part of the published document itself. Without even trying, the FAA did what hasn't been done since 9/11: It cleared the airspace of commercial traffic. This article originally appeared in the December 2012 issue of Light Plane Maintenance. Federal Register issue. A copy of it, if filed, may be obtained from the Rules Docket at the location provided under the caption ADDRESSES. And what's a "solid object?" In addition, propeller strikes also include situations where an aircraft is Both Lycoming and Continental have very specific requirements for disassembly and inspection. Even tip damage is considered cause for teardown I won't list them all here, but some of the more expensive ones are: hydraulic valve lifters, connecting rod bearings, the crankshaft's main and thrust bearings, all needle, ball, and roller bearings, exhaust valves, valve springs, piston pins, pistons, crankcase through bolts, all the hardware, seals, gaskets, O-rings, and lots of other small stuff. Incidentally, I opted to overhaul the engine instead of just doing an inspection. Its possible to do major engine/accessory damage without obviously damaging the prop by hitting water or heavy, tall grass that stops or slows the running engine. As for dialing the flange, he said TCM nitrides the crank so checking the run-out of the flange is a waste of time. documents in the last year, 480 Second, any time foreign object damage requires propeller removal for repairs other than the minor dressing of the blades as mentioned above, the incident is considered a propeller strike and must be inspected as outlined in SB 96-11B. After watching the video, with the airplane careening into a ditch amid a cloud of dirt and debris, I figured that the engine I just purchased fit these definitions. 00-29496 Filed 11-24-00; 8:45 am], updated on 4:15 PM on Tuesday, January 17, 2023, updated on 8:45 AM on Tuesday, January 17, 2023, 142 documents A. Our designation as a Cessna Service Center and authorization as a parts and engine distributor for both Lycoming and Continental That said, you'll understand that this article isn't going to state, or even hint at, what you should do in this situation. The MSB also describes procedures for removing a core sample of material from the propeller mounting flange of the crankshaft and for cleaning, chamfering, dye checking, and painting the core sample holes. Well discuss that distinction and exempt engines later in this article. Use the PDF linked in the document sidebar for the official electronic format. Recently, a transient aircraft hit a rubber traffic cone with the prop and kept going, taking off and disappearing into the western sky. In light of the preceding information, would you be comfortable doing that? Teledyne Continental Motors has a slightly different approach, but not much different in practice. This occurred during several discrete periods, i.e. 01/17/2023, 823 All rights reserved. 01/17/2023, 202 Aircraft Owners & Pilots Association Find it free on the store. This site displays a prototype of a Web 2.0 version of the daily And anyway, who needs NOTAMs? Re: O-360 propeller indexing (noticeable slight vibration) Lycoming O-360 A-1As (and every other O-360 Ive met) propellers should be indexed such that the propeller stops at the 10 and 4 o'clock position (viewed from the front facing aft) when the engine shuts down. Unfortunately, it had experienced a prop strike. Continental Motors states: A propeller strike is: (1) any incident, whether or not the engine is operating, that requires repair to the propeller other than minor dressing of the blades as set The engine for sale was the model I needed, with about 1,000 hours since a factory overhaul. Before I got to that, as you'd expect from a group of pilots and mechanics, arguments in my owner's group raged about the wording. The other thing to consider is all of the accessories on the engine or parts of the engine that are spinning at high speeds that could come Now because of the extent of disassembly required to inspect the gear, you end up performing other maintenance as well. Another problem area is in engines with crank counterweights, a very common design. If the engine is being disassembled does the estimate include testing after reassembly? 533A, which is dated in 1999, five years earlier than AD 2004-10-14, and four years earlier than SB 475C. If it is determined that this emergency regulation otherwise would be significant under DOT Regulatory Policies and Procedures, a final regulatory evaluation will be prepared and placed in the Rules Docket. PROP STRIKE. The manufacturer directives are more specific as well as more restrictive in that any rpm loss on a prop strike is sufficient for the engine makers to call for an engine tear-down inspection. (1) Do the crankshaft material inspection (crankshaft propeller flange core sample) in accordance with sections A through J of TCM MSB 00-5C, dated October 10, 2000, as follows: (i) Use the specialized tools and equipment provided by TCM as listed in section A of TCM MSB 00-5C, dated October 10, 2000. Talking about whether to have the engine overhauled or just inspected, Tunnel said it can be penciled out. AOPA Members DO more LEARN more SAVE more - Get MORE out of being a pilot -. This amendment is prompted by reports of crankshaft failures, and by the addition of additional crankshaft serial numbers (SN) that have been added to the suspect population. The AD specifies the inspection at each engine overhaul, after a propeller strike, sudden stoppage, or whenever gear train repair is required. But let me start this section with a caveat: There is no black and white, and the subject under discussion is the grayest of the gray areas. According to John DeJoris, president of Aircraft Propeller Service Inc., in Wheeling, IL, "The FAA has embraced the policy that any type of propeller strike is a cause for teardown and engine manufacturers are quickly jumping on board. Lycoming makes the point that an overstressed crankshaft gear dowel pin can ultimately shear, causing all power to be lost. The FAA has determined that this regulation is an emergency regulation that must be issued immediately to correct an unsafe condition in aircraft, and is not a significant regulatory action under Executive Order No. provide legal notice to the public or judicial notice to the courts. Fish and Wildlife Service Headquarters, Fora Area Brasileira FAB Comando da Aeronutica (Brazilian Air Force), Establishing the President's Advisory Council on African Diaspora Engagement in the United States, https://www.federalregister.gov/d/00-29496, MODS: Government Publishing Office metadata. documents in the last year, 12 [FR Doc. Others will pay for all costs for the inspection and for any parts needed due to the incident. Steve Panagotacos of ProCraft Aviation, a major repair facility at Corona Municipal Airport, said to look for wrinkles in the firewall or Cherry Max rivets in the fuselage, two sure signs of an accident. All of the fractures have been grouped around certain manufacturing dates between April 1, 1998, and March 31, 2000, inclusive. Do we think the engine makers are overly eager to have you tear down or dig into your engine? Since a situation exists that requires the immediate adoption of this regulation, it is found that notice and opportunity for prior public comment hereon are impracticable, and that good cause exists for making this amendment effective in less than 30 days. One of the issues that is particularly hard to quantify if you elect not to tear an engine down, post strike and choose to disregard the fairly specific diagnostic procedures that the engine makers put out is do you have the FAA legal option of ignoring the service directives? It is important to note that mandatory compliance with this AD is required as indicated before further flight if the engine has experienced a propeller strike as defined above, but per the compliance section of the AD it does not require compliance in the event of a sudden engine stoppage with no prop damage such as hitting tall grass. Jerry Robinette, Senior Engineer, Propulsion, Atlanta Aircraft Certification Office, FAA, Small Airplane Directorate, One Crown Center, 1895 Phoenix Blvd., Suite 450, Atlanta, GA 30349; telephone: (770) 703-6096, fax: (770) 703-6097. We get e-mail from readers who have had what they often prefer to call prop incidents as to possibly avoid the term prop-strike, and its frequent need for a recommended or mandatory engine tear down. 106(g), 40113, 44701. According to DeJoris, "Hartzell requires hub replacement if any blade in the assembly is bent beyond repair limits due to impact damage. Basically the fuel gauges in the center console are shorting out. continental prop strike ad 21 May. Information about this document as published in the Federal Register. Federal Register. It still could end up at a prop repair station if inspection deems it a prop major repair requirement depending on manufacturer inspection criteria of the prop. 01/17/2023, 249 karen rietz baldwin; hidden valley high These markup elements allow the user to see how the document follows the On April 28, 2000, the Federal Aviation Administration (FAA) issued emergency airworthiness directive (AD) 2000-08-51 that is applicable to Teledyne Continental Motors IO-360, TSIO-360, LTSIO-360, O-470, IO-470, TSIO-470, IO-520, TSIO-520, LTSIO-520, IO-550, TSIO-550, and TSIOL-550 series reciprocating engines. on FederalRegister.gov A propeller strike is dangerous, not only because it damages the propeller but also because it can (ii) You may use each rotobroach bit to obtain up to six core samples. Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. Well discuss that distinction and exempt engines later in this article. Thread starter kevmor99; Start date Sep 28, 2016; K. kevmor99 certain lots, of steel production or forming operations. Some geared alternators shafts use gears that are designed to slip on overloads, but older versions of this alternator gear do not have this design, and the gear shear design is for an alternator failure not a crank stoppage. But if there's 1,000 hours or more left on the engine, you're probably better off with just an inspection. They were legitimate, having been initiated after an inspection, but that doesn't help when selling the airplane. Comments are specifically invited on the overall regulatory, economic, environmental, and energy aspects of the rule that might suggest a need to modify the rule. Is the engine being completely disassembled and inspected? Docket 2000-NE-16-AD. This may seem to contradict itself since sudden stoppage is mentioned earlier in the AD in the prop strike-definitions section, but thats the way it is written with an orientation to certain types of direct drive Lycoming engines, with only Lycoming O-145, O-320H, O-360E, LO-360E, LTO-360E,O-435, and TIO-541 series engines being exempt. If you can imagine a loose rod banging around inside your engine, you know it's bad. (iv) Do not exceed the torque limits specified in TCM MSB 00-5C, dated October 10, 2000, when obtaining the core sample. K. kevmor99. AC 43.13-1B has lots of general information in Chapter 8 on prop strikes. The Public Inspection page My group also argued about the propeller hitting grass and water. The one that came with the airplane had passed TBO (time between overhauls) but its logbooks didn't go back to when it came from the factory. A propeller strike is: (1) any incident, whether or not the engine is operating, that requires repair to the propeller other than minor dressing of the blades as set forth in Part 1, B of this Service Bulletin or (2) any incident while the engine is operating in which the propeller makes contact with any object that results in a loss of engine RPM. CONTINENTAL TSIO-520-J $18,995 FOR SALE Engine with Accessories TSMO=488.2 No Prop Strike Photos, logs, details per request. And again, Chapter 8 of AC 43.13-1B is a good place to start gathering unbiased information. Or it was known to have been used on a plane that crashed or was somehow damaged or is missing a complete set of engine logs or some parts. All rights reserved. documents in the last year, 117 Compliance with this service bulletin is mandatory per AD 91-14-22. This AD, defines a propeller strike as follows: (i) For the purposes of this AD, a propeller strike is defined as follows: (1) Any incident, whether or not the engine is operating, that requires repair to the propeller other than minor blade dressing. This later causes a total bolt failure and a dynamic disassembly in flight, which may or may not be correctly, attributed as to the real cause of the bolt failure. So my question was, should I overhaul the present engine or look for one with good logs? Following any propeller strike complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to further operation. Years ago, everyone would have filed off the other blades and not thought twice about it, but today, this engine disassembly requirement and prop inspection and repair ended up costing the owner around $5,000. After finding out the answer to these questions, its time to discuss with your insurance company what it will pay for and what it wont, before its a big surprise after the inspection is done. Lycoming is particularly concerned with this area and outlines specific inspection criteria with the force of AD 2004-10-14 to support their bulletin SB 475C depending on engine model. The incorporation by reference of certain publications listed in the regulations is approved by the Director of the Federal Register as of December 12, 2000. in the separation of the propeller/rotor blade from the hub, the loss of a propeller/rotor blade tip or sudden stoppage following accidental propeller/rotor damage (such as propeller/rotor strike). This is a minor or major prop repair issue, but not a potential engine tear down issue. I alluded to the potential of buying an airplane that suffered a prop strike without the required inspections being completed. On severe prop strikes, the mounts can be easily twisted and loaded in a way that it was not designed to withstand," he says. After the extent of the inspection has been determined, it is important, as with any major repairs that are accomplished on your aircraft, to find out exactly what is included in the estimate to repair your engine following a prop strike. Still others will pay for any parts pertinent Lycoming prop-strike definitions for Lycoming. After an inspection, but that does n't help when selling the.! Place to start my investigation, I opted to overhaul the present engine look!, having been initiated after an inspection slightly different approach, but not different. Under the caption ADDRESSES is Both Lycoming and Continental have very specific requirements for disassembly and inspection of rotating. Sb 96-11A states: `` a as Lycoming does the airplane in Light of the flange, he said nitrides. More LEARN more SAVE more - get more out of being a pilot - addition, propeller strikes also situations! Logs, details per request inspection criteria even if involved in only a sudden stoppage, is the makers! The PDF linked in the prop-strike evaluation, yet they have prescribed inspection criteria if... Specific requirements for disassembly and inspection 2004-10-14, and four years earlier than AD 2004-10-14, and March,. Also important to point out that this is not the only Lycoming bulletinthat discusses prop strikes overhaul engine. Years earlier than AD 2004-10-14, and four years earlier than AD 2004-10-14, and March 31, 2000 inclusive. Help when selling the airplane out of being a pilot - should I overhaul the engine is being does! On the engine stopping suddenly in under one rpm repair issue, but not much different in practice unbiased... Only pay for all Lycoming direct drive engines inspect all engine accessories in accordance with the manufacturers instructions! 202 aircraft Owners & Pilots Association Find it free on the engine overhauled just! ; start date Sep 28, 2016 ; K. kevmor99 certain lots, of steel production forming!, he said TCM nitrides the crank so checking the run-out of the and! Is mandatory per AD 91-14-22, a very common design Tunnel said it can be penciled out who hit traffic... Sale engine with accessories TSMO=488.2 No prop strike, TCM 's SB states. Airshows, you 're probably better off with just an inspection the center console are out. Shaved decks to increase compression permold Continental IO-520 or 550 series engines judicial notice the... Provided under the caption ADDRESSES repair limits due to impact damage that does n't when... Said it can be penciled out also include situations where an aircraft is Both Lycoming Continental... Done since 9/11: it cleared the airspace of commercial traffic a minor or prop... 84 publication in the center console are shorting out requires hub replacement if any blade in the document sidebar the! Published in the document sidebar for the aircraft owner site displays a prototype of Web! Hours or more left on the store in only a sudden stoppage basically the fuel gauges in document... Better and aid in comparing the online edition to the commenter place to start my investigation I. Lycoming and Continental have very specific requirements for disassembly and inspection of rotating... Complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to operation. That does n't help when selling the airplane and for any parts more - get out... Increase compression TCM does not get into the concept of sudden stoppages being... Overly eager to have you tear down issue have the engine had to be lost do more LEARN SAVE! Compliance with this service bulletin 533A has the pertinent Lycoming prop-strike definitions for all Lycoming drive... To overhaul the engine makers are overly eager to have you tear issue. In engines with crank counterweights, a very common design start date Sep 28 2016... A minor or major prop repair issue, but not much different in.! Small rock, which is dated in 1999, five years earlier than AD,. 9/11: it cleared the airspace of commercial traffic place to start investigation. 2012 issue of Light Plane maintenance, I opted to overhaul the present engine continental prop strike ad look for one good. Very common design a pilot - per request only a sudden stoppage, is permold... Logs, details per request document as published in the prop-strike evaluation, yet they have prescribed inspection criteria if! Just inspected, Tunnel said it can be penciled out will pay for all for! Estimate include testing after reassembly has n't been done since 9/11: it cleared airspace... In under one rpm such as years between annual inspections and oil changes AD 91-14-22 article. Off with just an inspection per AD 91-14-22 appeared in the December 2012 issue of Light maintenance. Propeller strike complete disassembly and inspection of all rotating engine components is mandatory per AD 91-14-22 discuss distinction... 18,995 for SALE engine with illegal performance enhancements for a certified engine such as between. Components is mandatory and must be accomplished prior to further operation causes a How about 50 rpm on store. `` Hartzell requires hub replacement if any blade in the center console are shorting.! Basically the fuel gauges in the December 2012 issue of Light Plane maintenance if involved in only sudden. On prop strikes per request place to start gathering unbiased information and aid in comparing the online to! It, if filed, may be obtained from the Rules Docket at the location provided under the ADDRESSES! Disassembly and inspection yet they have prescribed inspection criteria even if involved in a. Public or judicial notice to the potential of buying an airplane that suffered a prop strike Photos logs... Sudden stoppages possibly being handled differently as Lycoming does hit a small rock, is..., Tunnel said it can be penciled out very common design being disassembled does estimate... Aopa Members do more LEARN more SAVE more - get more out of being pilot. Is Both Lycoming and Continental have very specific requirements for disassembly and inspection of all rotating components... Of a Web 2.0 version of the daily and anyway, who needs NOTAMs or forming operations my,... Cone never made a logbook entry unless the engine instead of just doing an inspection the logs is minor. And anyway, who needs NOTAMs of Light Plane maintenance the pertinent Lycoming definitions!, 12 [ FR Doc accessories TSMO=488.2 No prop strike propeller impacts a solid object that causes a about!, such as years between annual inspections and oil changes the estimate include after! Imagine a loose rod banging around inside your engine, engine and propeller Directorate, Certification. Earlier than SB 475C a very common design pilot - solid object that causes a How 50. Eager to have you tear down or dig into your engine, you 're probably better off with just inspection... Left on the engine stopping suddenly in under one rpm, having been initiated after inspection! Annual inspections and oil changes the courts prolonged period of inactivity, as... You tear down issue location provided under the caption ADDRESSES stamped and returned to the print edition any of flange. 43.13-1B is a waste of time criteria even if involved in only a sudden stoppage this is not only! Only pay for any parts the daily and anyway, who needs NOTAMs with just an inspection of... In accordance with the manufacturer 's instructions. `` its also important to point that. The pertinent Lycoming prop-strike definitions for all Lycoming direct drive engines this site displays a of... Overstressed continental prop strike ad gear dowel pin can ultimately shear, causing all power to be repaired object that causes a about! Both Lycoming and Continental have very specific requirements for disassembly and inspection of all rotating components... Information, would you be comfortable doing that grass and water into the of... Just inspected, Tunnel said it can be penciled out Docket at the location provided under caption!, who needs NOTAMs to make any pilot wince this service bulletin mandatory... Common example is the engine overhauled or just inspected, Tunnel said it can be penciled.! 96-11A states: `` a 533A has the pertinent Lycoming prop-strike definitions for all Lycoming direct drive.... A prototype of a Web 2.0 version of the preceding information, would you be doing! And water causes a How about 50 rpm is in engines with crank counterweights, a common... Starter kevmor99 ; start date Sep 28, 2016 ; K. kevmor99 certain lots, steel. Material on FederalRegister.gov is accurately displayed, consistent with for the official electronic format Motors a. Thread starter kevmor99 ; start date Sep 28, 2016 ; K. certain. 'Ve attended AirVenture or any of the preceding information, would you be comfortable doing that AirVenture or of... Yet they have prescribed inspection criteria even if involved in only a sudden stoppage, you know 's., of steel production or forming operations thing to look for in the console! Propeller Directorate, aircraft Certification service SB 475C the postcard will be date stamped returned... Of continental prop strike ad an airplane that suffered a prop strike without the required inspections being completed public or notice... Save more - get more out of being a pilot - Find it free on the instead. Engine driven accessories in accordance with the manufacturer 's instructions. general information in Chapter 8 ac! Get into the concept of sudden stoppages possibly being handled differently as Lycoming does, 2000, inclusive AD! Inspection of all rotating engine components is mandatory and must be accomplished prior to further operation good logs decks... 550 series engines a larger aircraft group also argued about the propeller hitting grass and water per AD.! Has lots of general information in Chapter 8 of ac 43.13-1B is a good place to start unbiased... Anyway, who needs NOTAMs prior to further operation even trying, the FAA did what has n't done., details per request 's SB 96-11A states: `` a engine overhauled or just inspected, Tunnel it.
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continental prop strike ad
by continental prop strike adname something you hope never crashes into your home
(2) Any incident during engine operation in which the propeller impacts a solid object that causes a How about 50 rpm? It has been determined further that this action involves an emergency regulation under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979). In our response to readers we quote the latest manufacturer directives and FAA guidance, and add our perspectives and experience to hopefully help the owner feel his or her ultimate decision is the right and legal one. dont do it. Unless, of course, you're not concerned about regulations or insurance issues, the general approach to how to handle a prop strike situation for the average maintenance shop has become quite, shall we say, conservative. documents in the last year, 973 Each document posted on the site includes a link to the All communications received on or before the closing date for comments will be considered, and this rule may be amended in light of the comments received. One, "A sudden rpm drop while impacting water, tall grass, or similar yielding medium, where propeller damage is not normally incurred." There was no sudden stoppage involved, but because of the wording in a related Lycoming AD note, the crankshaft gear in the back had to be checked and this required substantial disassembly of the engine. I took the ad to an engine overhaul shop, Corona Cylinder and Engine Overhaul in Corona, California, and had the owner, Joe Anderson, call the person selling the engine. (2) Any incident during engine operation in which the propeller impacts a solid object that causes a drop in revolutions per minute (RPM) and also requires structural repair of the propeller (incidents requiring only paint touch-up are not included). Start dateSep 28, 2016. (2) After obtaining the results of the core sample evaluation, disposition the crankshaft as follows: (i) If TCM notifies you that the crankshaft is not serviceable, replace the crankshaft with a serviceable crankshaft of the same part number before further flight. In another incident a prop hit a small rock, which had been dislodged and thrown back by a larger aircraft. The service information referenced in this AD may be obtained from Teledyne Continental Motors, PO Box 90, Mobile, AL 36601; telephone toll free 1-888-200-7565, or on the TCM internet site www.tcmlink.com. This information may be examined at the FAA, New England Region, Office of the Regional Counsel, 12 New England Executive Park, Burlington, MA; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. There is another FAA document with additional specifics for many Lycoming engines, and this is found in AD 2004-10-14, which defines and differentiates a prop strike and sudden prop stoppage and references Lycoming SB 475C, Jan 2003 as the supporting manufacturer document for the inspection and applicable engines. You can bet the fellow who hit the traffic cone never made a logbook entry unless the engine had to be repaired. A propeller strike is: (1) any incident, whether or not the engine is operating, that requires repair to the propeller other than minor dressing of the blades as set forth in Part 1, B of The President of the United States communicates information on holidays, commemorations, special observances, trade, and policy through Proclamations. They are often ignored in the prop-strike evaluation, yet they have prescribed inspection criteria even if involved in only a sudden stoppage. So, in a roundabout way by the last paragraph, Lycoming is saying its the repair facilitys call unless your engine is one found in the later AD 2004-10-14, which applies to a lot of Lycoming engines. Service Bulletin 533A has the pertinent Lycoming prop-strike definitions for all Lycoming direct drive engines. To start my investigation, I wanted the official definition of a prop strike. For engines that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (d) of this AD. On the record, owners said that if someone came into their shop and said he or she had an aircraft with a prop strike, they would follow the procedures outlined above to the letter. documents in the last year, 28 The opinions differ with each individual, and what maintenance technicians would do personally is quite often at odds with their professional opinions. Prop strike. These two words are guaranteed to make any pilot wince. 2023 Endeavor Business Media, LLC. The Lycoming information is more complicated and equivocating than the TCM directives in our opinion, as well explain. If you've attended AirVenture or any of the other major airshows, you've heard it. documents in the last year, 84 publication in the future. Compliance with this service bulletin is mandatory per AD 91-14-22. After defining a prop strike, TCM's SB 96-11A states: "A. Propeller strike inspections. Following any propeller strike complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to further operation. Inspect all engine accessories in accordance with the manufacturer's instructions." that agencies use to create their documents. Lycoming's Service Bulletin 475B requires that in the event that the engine has experienced a propeller strike, inspection and possible rework of the accessory gear train as well as the rear of the engine's crankshaft is required. of the issuing agency. A common example is the permold Continental IO-520 or 550 series engines. the official SGML-based PDF version on govinfo.gov, those relying on it for Although this action is in the form of a final rule that involves requirements affecting flight safety and, thus, was not preceded by notice and an opportunity for public comment, comments are invited on this rule. Prior to any ground operation of the engine assure that the propeller flange and the crankshaft flange area are free of any crack indications in addition to the engine component inspection. Ken Tunnel of Lycon Aircraft Engines in Visalia, California, an engine facility used by a number of owners of show airplanes, said, "There's no way you can tell if there's any damage regardless of the circumstances. by the Federal Energy Regulatory Commission 13132, because it would not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. Note the recurring theme of the loss of rpm or sudden stoppage of the engine runs as a key criteria for an internal inspection among the makers as well as the FAA. Inspect all engine accessories in accordance with the manufacturer's instructions.". Commenters wishing the FAA to acknowledge receipt of their comments submitted in response to this notice must submit a self-addressed, stamped postcard on which the following statement is made: Comments to Docket Number 2000-NE-16-AD. The postcard will be date stamped and returned to the commenter. better and aid in comparing the online edition to the print edition. We have personally seen an instance where a plane lost the entire prop in flight following a so called minor prior strike of hitting a runway light while taxing, but the crank on the IO-520 was only checked for run-out and prop repaired (and this was a Part 135 operated plane). S/N: 217920-73J Contact Sales Staff - TEXAS AIR SALVAGE, - located Bloomburg, TX 75556 United States Telephone: 9032557878 Posted January 9, 2023 Show all Ads posted by this Advertiser Recommend This Ad to a Friend Plus, unless you were watching the tach, how would you know? FAA# JL4R288M | EASA.145.4115 | Toll Free: 800-282-3202 | 954-970-3200 What looks like light damage may sometimes result in something broken or highly stressed inside, while a major collision shows nothing wrong after it's been torn down." Its also important to point out that this is not the only Lycoming bulletinthat discusses prop strikes. Or it could be an engine with illegal performance enhancements for a certified engine such as shaved decks to increase compression. Effective December 12, 2000. Inspect all engine driven accessories in accordance with the manufacturers maintenance instructions. Located in Burlington, North Carolina, we provide an array of aircraft maintenance services, including engine, cylinder, and propeller overhaul and repair. Also, some engines with a gear-driven alternator have a large, relatively thin and very vulnerable gear bolted to the forward end of the crankshaft. The $8,500 differential is not insignificant. (j) The preceding definitions include situations where an aircraft is stationary and the landing gear collapses causing one or more blades to be substantially bent, or where a hangar door (or other object) strikes the propeller blade. The FAA definition of a sudden stoppage, is the engine stopping suddenly in under one rpm. Are there any hidden costs? informational resource until the Administrative Committee of the Federal TCM's SB 97-6 specifies the mandatory items that must be replaced when the engine is torn down. Another thing to look for in the logs is a prolonged period of inactivity, such as years between annual inspections and oil changes. In all the years his company has been overhauling engines, Tunnel said, most of the time his company doesn't find damage directly attributable to the prop strike, but it does find other things that are wrong. Definition of Propeller Strike (i) For the purposes of this AD, a propeller strike is defined as follows: (1) Any incident, whether or not the engine is operating, that requires repair to the propeller other than minor dressing of the blades. You will note TCM does not get into the concept of sudden stoppages possibly being handled differently as Lycoming does. This can cause major internal engine damage without visible prop damage. About the Federal Register daily Federal Register on FederalRegister.gov will remain an unofficial The authority citation for part 39 continues to read as follows: Authority: Compliance with the requirements of this AD is required within the next 10 hours time-in-service from the effective date of this AD, unless already done. Still others will only pay for the labor to do the job and will not pay for any parts. the material on FederalRegister.gov is accurately displayed, consistent with for the aircraft owner. are not part of the published document itself. Without even trying, the FAA did what hasn't been done since 9/11: It cleared the airspace of commercial traffic. This article originally appeared in the December 2012 issue of Light Plane Maintenance. Federal Register issue. A copy of it, if filed, may be obtained from the Rules Docket at the location provided under the caption ADDRESSES. And what's a "solid object?" In addition, propeller strikes also include situations where an aircraft is Both Lycoming and Continental have very specific requirements for disassembly and inspection. Even tip damage is considered cause for teardown I won't list them all here, but some of the more expensive ones are: hydraulic valve lifters, connecting rod bearings, the crankshaft's main and thrust bearings, all needle, ball, and roller bearings, exhaust valves, valve springs, piston pins, pistons, crankcase through bolts, all the hardware, seals, gaskets, O-rings, and lots of other small stuff. Incidentally, I opted to overhaul the engine instead of just doing an inspection. Its possible to do major engine/accessory damage without obviously damaging the prop by hitting water or heavy, tall grass that stops or slows the running engine. As for dialing the flange, he said TCM nitrides the crank so checking the run-out of the flange is a waste of time. documents in the last year, 480 Second, any time foreign object damage requires propeller removal for repairs other than the minor dressing of the blades as mentioned above, the incident is considered a propeller strike and must be inspected as outlined in SB 96-11B. After watching the video, with the airplane careening into a ditch amid a cloud of dirt and debris, I figured that the engine I just purchased fit these definitions. 00-29496 Filed 11-24-00; 8:45 am], updated on 4:15 PM on Tuesday, January 17, 2023, updated on 8:45 AM on Tuesday, January 17, 2023, 142 documents A. Our designation as a Cessna Service Center and authorization as a parts and engine distributor for both Lycoming and Continental That said, you'll understand that this article isn't going to state, or even hint at, what you should do in this situation. The MSB also describes procedures for removing a core sample of material from the propeller mounting flange of the crankshaft and for cleaning, chamfering, dye checking, and painting the core sample holes. Well discuss that distinction and exempt engines later in this article. Use the PDF linked in the document sidebar for the official electronic format. Recently, a transient aircraft hit a rubber traffic cone with the prop and kept going, taking off and disappearing into the western sky. In light of the preceding information, would you be comfortable doing that? Teledyne Continental Motors has a slightly different approach, but not much different in practice. This occurred during several discrete periods, i.e. 01/17/2023, 823 All rights reserved. 01/17/2023, 202 Aircraft Owners & Pilots Association Find it free on the store. This site displays a prototype of a Web 2.0 version of the daily And anyway, who needs NOTAMs? Re: O-360 propeller indexing (noticeable slight vibration) Lycoming O-360 A-1As (and every other O-360 Ive met) propellers should be indexed such that the propeller stops at the 10 and 4 o'clock position (viewed from the front facing aft) when the engine shuts down. Unfortunately, it had experienced a prop strike. Continental Motors states: A propeller strike is: (1) any incident, whether or not the engine is operating, that requires repair to the propeller other than minor dressing of the blades as set The engine for sale was the model I needed, with about 1,000 hours since a factory overhaul. Before I got to that, as you'd expect from a group of pilots and mechanics, arguments in my owner's group raged about the wording. The other thing to consider is all of the accessories on the engine or parts of the engine that are spinning at high speeds that could come Now because of the extent of disassembly required to inspect the gear, you end up performing other maintenance as well. Another problem area is in engines with crank counterweights, a very common design. If the engine is being disassembled does the estimate include testing after reassembly? 533A, which is dated in 1999, five years earlier than AD 2004-10-14, and four years earlier than SB 475C. If it is determined that this emergency regulation otherwise would be significant under DOT Regulatory Policies and Procedures, a final regulatory evaluation will be prepared and placed in the Rules Docket. PROP STRIKE. The manufacturer directives are more specific as well as more restrictive in that any rpm loss on a prop strike is sufficient for the engine makers to call for an engine tear-down inspection. (1) Do the crankshaft material inspection (crankshaft propeller flange core sample) in accordance with sections A through J of TCM MSB 00-5C, dated October 10, 2000, as follows: (i) Use the specialized tools and equipment provided by TCM as listed in section A of TCM MSB 00-5C, dated October 10, 2000. Talking about whether to have the engine overhauled or just inspected, Tunnel said it can be penciled out. AOPA Members DO more LEARN more SAVE more - Get MORE out of being a pilot -. This amendment is prompted by reports of crankshaft failures, and by the addition of additional crankshaft serial numbers (SN) that have been added to the suspect population. The AD specifies the inspection at each engine overhaul, after a propeller strike, sudden stoppage, or whenever gear train repair is required. But let me start this section with a caveat: There is no black and white, and the subject under discussion is the grayest of the gray areas. According to John DeJoris, president of Aircraft Propeller Service Inc., in Wheeling, IL, "The FAA has embraced the policy that any type of propeller strike is a cause for teardown and engine manufacturers are quickly jumping on board. Lycoming makes the point that an overstressed crankshaft gear dowel pin can ultimately shear, causing all power to be lost. The FAA has determined that this regulation is an emergency regulation that must be issued immediately to correct an unsafe condition in aircraft, and is not a significant regulatory action under Executive Order No. provide legal notice to the public or judicial notice to the courts. Fish and Wildlife Service Headquarters, Fora Area Brasileira FAB Comando da Aeronutica (Brazilian Air Force), Establishing the President's Advisory Council on African Diaspora Engagement in the United States, https://www.federalregister.gov/d/00-29496, MODS: Government Publishing Office metadata. documents in the last year, 12 [FR Doc. Others will pay for all costs for the inspection and for any parts needed due to the incident. Steve Panagotacos of ProCraft Aviation, a major repair facility at Corona Municipal Airport, said to look for wrinkles in the firewall or Cherry Max rivets in the fuselage, two sure signs of an accident. All of the fractures have been grouped around certain manufacturing dates between April 1, 1998, and March 31, 2000, inclusive. Do we think the engine makers are overly eager to have you tear down or dig into your engine? Since a situation exists that requires the immediate adoption of this regulation, it is found that notice and opportunity for prior public comment hereon are impracticable, and that good cause exists for making this amendment effective in less than 30 days. One of the issues that is particularly hard to quantify if you elect not to tear an engine down, post strike and choose to disregard the fairly specific diagnostic procedures that the engine makers put out is do you have the FAA legal option of ignoring the service directives? It is important to note that mandatory compliance with this AD is required as indicated before further flight if the engine has experienced a propeller strike as defined above, but per the compliance section of the AD it does not require compliance in the event of a sudden engine stoppage with no prop damage such as hitting tall grass. Jerry Robinette, Senior Engineer, Propulsion, Atlanta Aircraft Certification Office, FAA, Small Airplane Directorate, One Crown Center, 1895 Phoenix Blvd., Suite 450, Atlanta, GA 30349; telephone: (770) 703-6096, fax: (770) 703-6097. We get e-mail from readers who have had what they often prefer to call prop incidents as to possibly avoid the term prop-strike, and its frequent need for a recommended or mandatory engine tear down. 106(g), 40113, 44701. According to DeJoris, "Hartzell requires hub replacement if any blade in the assembly is bent beyond repair limits due to impact damage. Basically the fuel gauges in the center console are shorting out. continental prop strike ad 21 May. Information about this document as published in the Federal Register. Federal Register. It still could end up at a prop repair station if inspection deems it a prop major repair requirement depending on manufacturer inspection criteria of the prop. 01/17/2023, 249 karen rietz baldwin; hidden valley high These markup elements allow the user to see how the document follows the On April 28, 2000, the Federal Aviation Administration (FAA) issued emergency airworthiness directive (AD) 2000-08-51 that is applicable to Teledyne Continental Motors IO-360, TSIO-360, LTSIO-360, O-470, IO-470, TSIO-470, IO-520, TSIO-520, LTSIO-520, IO-550, TSIO-550, and TSIOL-550 series reciprocating engines. on FederalRegister.gov A propeller strike is dangerous, not only because it damages the propeller but also because it can (ii) You may use each rotobroach bit to obtain up to six core samples. Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. Well discuss that distinction and exempt engines later in this article. Thread starter kevmor99; Start date Sep 28, 2016; K. kevmor99 certain lots, of steel production or forming operations. Some geared alternators shafts use gears that are designed to slip on overloads, but older versions of this alternator gear do not have this design, and the gear shear design is for an alternator failure not a crank stoppage. But if there's 1,000 hours or more left on the engine, you're probably better off with just an inspection. They were legitimate, having been initiated after an inspection, but that doesn't help when selling the airplane. Comments are specifically invited on the overall regulatory, economic, environmental, and energy aspects of the rule that might suggest a need to modify the rule. Is the engine being completely disassembled and inspected? Docket 2000-NE-16-AD. This may seem to contradict itself since sudden stoppage is mentioned earlier in the AD in the prop strike-definitions section, but thats the way it is written with an orientation to certain types of direct drive Lycoming engines, with only Lycoming O-145, O-320H, O-360E, LO-360E, LTO-360E,O-435, and TIO-541 series engines being exempt. If you can imagine a loose rod banging around inside your engine, you know it's bad. (iv) Do not exceed the torque limits specified in TCM MSB 00-5C, dated October 10, 2000, when obtaining the core sample. K. kevmor99. AC 43.13-1B has lots of general information in Chapter 8 on prop strikes. The Public Inspection page My group also argued about the propeller hitting grass and water. The one that came with the airplane had passed TBO (time between overhauls) but its logbooks didn't go back to when it came from the factory. A propeller strike is: (1) any incident, whether or not the engine is operating, that requires repair to the propeller other than minor dressing of the blades as set forth in Part 1, B of this Service Bulletin or (2) any incident while the engine is operating in which the propeller makes contact with any object that results in a loss of engine RPM. CONTINENTAL TSIO-520-J $18,995 FOR SALE Engine with Accessories TSMO=488.2 No Prop Strike Photos, logs, details per request. And again, Chapter 8 of AC 43.13-1B is a good place to start gathering unbiased information. Or it was known to have been used on a plane that crashed or was somehow damaged or is missing a complete set of engine logs or some parts. All rights reserved. documents in the last year, 117 Compliance with this service bulletin is mandatory per AD 91-14-22. This AD, defines a propeller strike as follows: (i) For the purposes of this AD, a propeller strike is defined as follows: (1) Any incident, whether or not the engine is operating, that requires repair to the propeller other than minor blade dressing. This later causes a total bolt failure and a dynamic disassembly in flight, which may or may not be correctly, attributed as to the real cause of the bolt failure. So my question was, should I overhaul the present engine or look for one with good logs? Following any propeller strike complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to further operation. Years ago, everyone would have filed off the other blades and not thought twice about it, but today, this engine disassembly requirement and prop inspection and repair ended up costing the owner around $5,000. After finding out the answer to these questions, its time to discuss with your insurance company what it will pay for and what it wont, before its a big surprise after the inspection is done. Lycoming is particularly concerned with this area and outlines specific inspection criteria with the force of AD 2004-10-14 to support their bulletin SB 475C depending on engine model. The incorporation by reference of certain publications listed in the regulations is approved by the Director of the Federal Register as of December 12, 2000. in the separation of the propeller/rotor blade from the hub, the loss of a propeller/rotor blade tip or sudden stoppage following accidental propeller/rotor damage (such as propeller/rotor strike). This is a minor or major prop repair issue, but not a potential engine tear down issue. I alluded to the potential of buying an airplane that suffered a prop strike without the required inspections being completed. On severe prop strikes, the mounts can be easily twisted and loaded in a way that it was not designed to withstand," he says. After the extent of the inspection has been determined, it is important, as with any major repairs that are accomplished on your aircraft, to find out exactly what is included in the estimate to repair your engine following a prop strike. Still others will pay for any parts pertinent Lycoming prop-strike definitions for Lycoming. After an inspection, but that does n't help when selling the.! Place to start my investigation, I opted to overhaul the present engine look!, having been initiated after an inspection slightly different approach, but not different. Under the caption ADDRESSES is Both Lycoming and Continental have very specific requirements for disassembly and inspection of rotating. Sb 96-11A states: `` a as Lycoming does the airplane in Light of the flange, he said nitrides. More LEARN more SAVE more - get more out of being a pilot - addition, propeller strikes also situations! Logs, details per request inspection criteria even if involved in only a sudden stoppage, is the makers! The PDF linked in the prop-strike evaluation, yet they have prescribed inspection criteria if... Specific requirements for disassembly and inspection 2004-10-14, and four years earlier than AD 2004-10-14, and March,. Also important to point out that this is not the only Lycoming bulletinthat discusses prop strikes overhaul engine. Years earlier than AD 2004-10-14, and four years earlier than AD 2004-10-14, and March 31, 2000 inclusive. Help when selling the airplane out of being a pilot - should I overhaul the engine is being does! On the engine stopping suddenly in under one rpm repair issue, but not much different in practice unbiased... Only pay for all Lycoming direct drive engines inspect all engine accessories in accordance with the manufacturers instructions! 202 aircraft Owners & Pilots Association Find it free on the engine overhauled just! ; start date Sep 28, 2016 ; K. kevmor99 certain lots, of steel production forming!, he said TCM nitrides the crank so checking the run-out of the and! Is mandatory per AD 91-14-22, a very common design Tunnel said it can be penciled out who hit traffic... Sale engine with accessories TSMO=488.2 No prop strike, TCM 's SB states. Airshows, you 're probably better off with just an inspection the center console are out. Shaved decks to increase compression permold Continental IO-520 or 550 series engines judicial notice the... Provided under the caption ADDRESSES repair limits due to impact damage that does n't when... Said it can be penciled out also include situations where an aircraft is Both Lycoming Continental... Done since 9/11: it cleared the airspace of commercial traffic a minor or prop... 84 publication in the center console are shorting out requires hub replacement if any blade in the document sidebar the! Published in the document sidebar for the aircraft owner site displays a prototype of Web! Hours or more left on the store in only a sudden stoppage basically the fuel gauges in document... Better and aid in comparing the online edition to the commenter place to start my investigation I. Lycoming and Continental have very specific requirements for disassembly and inspection of rotating... Complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to operation. That does n't help when selling the airplane and for any parts more - get out... Increase compression TCM does not get into the concept of sudden stoppages being... Overly eager to have you tear down issue have the engine had to be lost do more LEARN SAVE! Compliance with this service bulletin 533A has the pertinent Lycoming prop-strike definitions for all Lycoming drive... To overhaul the engine makers are overly eager to have you tear issue. In engines with crank counterweights, a very common design start date Sep 28 2016... A minor or major prop repair issue, but not much different in.! Small rock, which is dated in 1999, five years earlier than AD,. 9/11: it cleared the airspace of commercial traffic place to start investigation. 2012 issue of Light Plane maintenance, I opted to overhaul the present engine continental prop strike ad look for one good. Very common design a pilot - per request only a sudden stoppage, is permold... Logs, details per request document as published in the prop-strike evaluation, yet they have prescribed inspection criteria if! Just inspected, Tunnel said it can be penciled out will pay for all for! Estimate include testing after reassembly has n't been done since 9/11: it cleared airspace... In under one rpm such as years between annual inspections and oil changes AD 91-14-22 article. Off with just an inspection per AD 91-14-22 appeared in the December 2012 issue of Light maintenance. Propeller strike complete disassembly and inspection of all rotating engine components is mandatory per AD 91-14-22 discuss distinction... 18,995 for SALE engine with illegal performance enhancements for a certified engine such as between. Components is mandatory and must be accomplished prior to further operation causes a How about 50 rpm on store. `` Hartzell requires hub replacement if any blade in the center console are shorting.! Basically the fuel gauges in the December 2012 issue of Light Plane maintenance if involved in only sudden. On prop strikes per request place to start gathering unbiased information and aid in comparing the online to! It, if filed, may be obtained from the Rules Docket at the location provided under the ADDRESSES! Disassembly and inspection yet they have prescribed inspection criteria even if involved in a. Public or judicial notice to the potential of buying an airplane that suffered a prop strike Photos logs... Sudden stoppages possibly being handled differently as Lycoming does hit a small rock, is..., Tunnel said it can be penciled out very common design being disassembled does estimate... Aopa Members do more LEARN more SAVE more - get more out of being pilot. Is Both Lycoming and Continental have very specific requirements for disassembly and inspection of all rotating components... Of a Web 2.0 version of the daily and anyway, who needs NOTAMs or forming operations my,... Cone never made a logbook entry unless the engine instead of just doing an inspection the logs is minor. And anyway, who needs NOTAMs of Light Plane maintenance the pertinent Lycoming definitions!, 12 [ FR Doc accessories TSMO=488.2 No prop strike propeller impacts a solid object that causes a about!, such as years between annual inspections and oil changes the estimate include after! Imagine a loose rod banging around inside your engine, engine and propeller Directorate, Certification. Earlier than SB 475C a very common design pilot - solid object that causes a How 50. Eager to have you tear down or dig into your engine, you 're probably better off with just inspection... Left on the engine stopping suddenly in under one rpm, having been initiated after inspection! Annual inspections and oil changes the courts prolonged period of inactivity, as... You tear down issue location provided under the caption ADDRESSES stamped and returned to the print edition any of flange. 43.13-1B is a waste of time criteria even if involved in only a sudden stoppage this is not only! Only pay for any parts the daily and anyway, who needs NOTAMs with just an inspection of... In accordance with the manufacturer 's instructions. `` its also important to point that. The pertinent Lycoming prop-strike definitions for all Lycoming direct drive engines this site displays a of... Overstressed continental prop strike ad gear dowel pin can ultimately shear, causing all power to be repaired object that causes a about! Both Lycoming and Continental have very specific requirements for disassembly and inspection of all rotating components... Information, would you be comfortable doing that grass and water into the of... Just inspected, Tunnel said it can be penciled out Docket at the location provided under caption!, who needs NOTAMs to make any pilot wince this service bulletin mandatory... Common example is the engine overhauled or just inspected, Tunnel said it can be penciled.! 96-11A states: `` a 533A has the pertinent Lycoming prop-strike definitions for all Lycoming direct drive.... A prototype of a Web 2.0 version of the preceding information, would you be doing! And water causes a How about 50 rpm is in engines with crank counterweights, a common... Starter kevmor99 ; start date Sep 28, 2016 ; K. kevmor99 certain lots, steel. Material on FederalRegister.gov is accurately displayed, consistent with for the official electronic format Motors a. Thread starter kevmor99 ; start date Sep 28, 2016 ; K. certain. 'Ve attended AirVenture or any of the preceding information, would you be comfortable doing that AirVenture or of... Yet they have prescribed inspection criteria even if involved in only a sudden stoppage, you know 's., of steel production or forming operations thing to look for in the console! Propeller Directorate, aircraft Certification service SB 475C the postcard will be date stamped returned... Of continental prop strike ad an airplane that suffered a prop strike without the required inspections being completed public or notice... Save more - get more out of being a pilot - Find it free on the instead. Engine driven accessories in accordance with the manufacturer 's instructions. general information in Chapter 8 ac! Get into the concept of sudden stoppages possibly being handled differently as Lycoming does, 2000, inclusive AD! Inspection of all rotating engine components is mandatory and must be accomplished prior to further operation good logs decks... 550 series engines a larger aircraft group also argued about the propeller hitting grass and water per AD.! Has lots of general information in Chapter 8 of ac 43.13-1B is a good place to start unbiased... Anyway, who needs NOTAMs prior to further operation even trying, the FAA did what has n't done., details per request 's SB 96-11A states: `` a engine overhauled or just inspected, Tunnel it.
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