continental prop strike ad

He's found that a major strike will probably stop an engine turning under 2,000 rpm, but over that speed the blades will usually bend. 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. documents in the last year, by the Transportation Security Administration For documents in the last year, 41 documents in the last year, 1401 Yet, the company recently published a new Service Bulletin, SB No. For example, how much propeller filing constitutes "minor dressing?" on Nitride hardened cranks have a greater tendency to crack, since the nitride hardened materials resist bending. You can bet the fellow who hit the traffic cone never made a logbook entry unless the engine had to be repaired. In fact it is a very insidious situation since there is often no obvious damage-no harm, no foul so to speak. AC 43.13-1B has lots of general information in Chapter 8 on prop strikes. Disregard the letter R.. 01/17/2023, 159 Compliance with this service bulletin is mandatory per AD 91-14-22. 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. A Textron Lycoming engine, that is being operated on a Part 91 aircraft, that had a sudden engine stoppage, not a propeller strike, must comply with AD 91-14-22 and Service Bulletin 475B at a minimum. Either may require additional inspection but neither may negate the inspections required by the FARs. A prop-strike also imposes terrific jamming forces backward on the rear of the case-where the gearing is located and easily damaged. Got a nick on your prop? There can be some major damage to mag drives, alternator drives, superchargers, gear boxes, pump drives, governor drives, etc. SUMMARY: The FAA is adopting a new airworthiness directive (AD) that supersedes an existing AD, for Lycoming Engines (formerly Textron Lycoming), direct-drive Compliance with this service bulletin is mandatory per AD 91-14-22. I took the other SR20 this time and it was also broken, to the point where it shouldn't have been flown. That said, you'll understand that this article isn't going to state, or even hint at, what you should do in this situation. Factual information that supports the commenter's ideas and suggestions is extremely helpful in evaluating the effectiveness of the AD action and determining whether additional rulemaking action would be needed. Each document posted on the site includes a link to the In many instances prop strikes will fall into the major repair category, which necessitates repair station or manufacturer repair of the prop (if needed). Prop strike on Continental. are not part of the published document itself. Its entirely possible after a sudden engine stoppage for there to be severe internal damage and yet the prop looks perfectly OK even if the prop was either totally stopped or the rpm dropped by the incident. (ii) You may use each rotobroach bit to obtain up to six core samples. (f) This amendment becomes effective on December 12, 2000. ", In addition to regulatory changes and manufacturer recommendations, insurance companies are also playing a major role in determining what you do to your engine and prop. Textron Lycoming must take the position that in the case of a sudden stoppage, propeller/rotor strike or loss of propeller/ rotor blade or tip, the safest procedure is to remove and disassemble the engine and completely inspect the reciprocating and rotating parts including crankshaft gear and dowel parts. Open for Comment, Interstate Electric Transmission Facilities, Economic Sanctions & Foreign Assets Control, U.S. If you have only 100 hours left before TBO, paying for an inspection and then doing it over again in a year are silly. Conditions which surround accidents are many and varied; therefore the circumstances of the accident can not, in our opinion, be used to predict the extent of the damage to the engine or assure its future reliability. (c) Crankshaft material inspections (crankshaft propeller flange core samples) that were done using TCM MSB 00-5, dated April 14, 2000; MSB 00-5A, dated April 28, 2000; or MSB 00-5B, dated May 25, 2000, comply with this AD and must not be repeated. About the Federal Register Steve Whitson, AOPA 593652, of Perris, California, has more than 3,000 hours and owns a 1977 Cessna 210. The opinions differ with each individual, and what maintenance technicians would do personally is quite often at odds with their professional opinions. TCM-powered aircraft operating under Part 135 of the FARs that have to comply with all manufacturers service bulletins would have to comply with Service Bulletin 96-11B, dealing with prop strikes, dated July 2008, requiring total legal research should verify their results against an official edition of Note 10: 2400 hours TBO may apply. They all agreed that if it were their aircraft, they would think long and hard about doing a teardown and inspection. A Rule by the Federal Aviation Administration on 11/27/2000. Both Lycoming and Continental have very specific requirements for disassembly and inspection. (b) After the effective date of this AD, do not install a crankshaft with a SN that is Start Printed Page 70656listed in MSB 00-5C, dated October 10, 2000, unless core samples have been taken and TCM has approved it for return to service. Engine inspection requirements after prop strikes can become complicated, however, and the regulations and recommendations seem to overlap and intertwine. Panagotacos recently paid $66 for the list of a 1956 Cessna 182, which is in his shop. 2. (iv) Do not exceed the torque limits specified in TCM MSB 00-5C, dated October 10, 2000, when obtaining the core sample. Russell explains, "Aircraft operating under Part 135 of the FARs must comply with all manufacturer's service bulletins, and would have to comply with Service Bulletin 96-11 requiring total disassembly and inspection after any incident that required removal of the propeller for repairs or if the engine physically lost rpms during the incident. 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. 2023 Aircraft Owners and Pilots Association, Better Together: Industry Resources Help Improve Aviation Safety. Basically anything that moves is subject to visual and other forms of nondestructive testing. Propeller inspections are fairly clear cut damage on the blades is typically quite apparent, and the existence of damage beyond field repair limits dictates that the unit is disassembled and given a searching internal inspection, and in some cases, complete overhaul. Dialing in the flange is worthless for this. Studies have shown that a 100-amp alternator can impose a. This proposed rule does not have federalism implications, as defined in Executive Order No. These cases should be handled as sudden stoppages because of potentially severe side loading on the crankshaft flange, front bearing, and seal. (d) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Atlanta Aircraft Certification Office (ACO). In this Issue, Documents Their decision would involve the specific engine involved, the severity of the prop damage, the cost, the time on the engine, whether the prop was stopped or appreciably slowed, who was flying at the time, what else is going on in the shop, and maybe the time of year and their mother's maiden name. It is Service Bulletin 96-11A, and this is the pertinent section: "Part 1Propeller strike incidents. 2023 Endeavor Business Media, LLC. Never allow an insurance adjuster to dictate the inspection requirements after an incident. The alternator is turning 3000 rpm because of gearing. the most are "prop strike." Another problem area is in engines with crank counterweights, a very common design. FIND A DEALER. 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 Although many in the industry still like to interpret rules to their advantage, the mechanic is being faced with fewer and fewer "outs" Located in Burlington, North Carolina, we provide an array of aircraft maintenance services, including engine, cylinder, and propeller overhaul and repair. (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. A propeller strike can occur at taxi speeds and during touch-and-go operations with propeller tip ground contact. (iii) Maintain a record of each core sample obtained with each rotobroach bit used. A. This condition, if not corrected, could result in crankshaft connecting rod journal fracture, which could result in total engine power loss, in-flight engine failure and possible forced landing. We see flyweights and connecting hardware, in some designs, brutalized quite frequently by sudden stoppage. Since an unsafe condition has been identified that is likely to exist or develop on other engines of this same type design, this airworthiness directive (AD) requires removing a core sample of material from the propeller mounting flange and sending the core sample to TCM for evaluation. These markup elements allow the user to see how the document follows the Thread starter kevmor99; Start date Sep 28, 2016; K. kevmor99 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. rendition of the daily Federal Register on FederalRegister.gov does not This can cause major internal engine damage without visible prop damage. On November 24, 1999, the FAA was notified of a crankshaft failure on a TCM engine. This document has been published in the Federal Register. documents in the last year, 480 TCM's SB 97-6 specifies the mandatory items that must be replaced when the engine is torn down. and services, go to Other Lycoming literature mentions the importance to check the accessories as does TCM. 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. He continues, "T.C.M. Be especially wary if this is some form of private cash sale that has to be done right away, unless you are planning to have it torn down and rebuilt by a shop with the right inspection equipment to inspect for crank and gear damage, and be prepared for costs potentially exceeding a factory reman engine i.e. At least thats our goal. A full overhaul will cost about $12,500 plus accessories. on Over the years, Continental has built a service offering for aircraft operators and owners These services include engine overhauls at the Continental factory service center for Continental, Titan, and LYCOMING engines, factory overhauls for Continental AvGas engines, sudden stoppage/propeller strikes, shock inspections, fleet overhaul programs, Jet-A burning engine Includes: Fuel Injection Spyder Starter Alternator Bendix Magnetos Gamijectors I will be more than happy to ship this engine to you. If possible, he suggests, mark the flange somehow, or take a photo of the scratches and nicks so you can compare it to the "new" one later. According to the salvage yard, the prop strike came about after an out-of-fuel landing on a road in Louisiana. On TCM engines with the geared alternators up front, he has seen the mounting flange and the gear drive bolts break during a prop strike. Refer McCauley Service Bulletin 137W. The pressure from an owner to ignore the engine and fix the prop may be great, but it is certainly in the best interest of the mechanic's career to persuade the owner that any amount of damage to the propeller constitutes the need for a thorough inspection. Register (ACFR) issues a regulation granting it official legal status. Plus, unless you were watching the tach, how would you know? We like to think that those we deal with are honest, however, there's a chance of impropiety by a seller, so when buying an airplane, be careful. 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." for the aircraft owner. There's also the cost of inspection of the accessories, which is extra. 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. 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. After defining a prop strike, TCM's SB 96-11A states: "A. as a result of sudden stoppage. Highly stressed connecting rod bolts also take a beating from a prop-strike, which can cause a slight stretch. "It" 2023 Aviation Publishing Group. And as we previously mentioned, the Lycoming 475C bulletin is broader than a prop strike; it is oriented to general engine overhaul crank inspections or crankshaft gear removal for inspection as well as prop strikes. 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. Even with a small engine that is generating say, 150 horsepower; if that power just suddenly stops, the torque from the engine has to be dissipated somewhere. AC 43.13-1B has a great deal to say about what should be done in the manner of inspections and actions, and all the statements are preceded by the word must such as following the manufacturer directives as the priority action, with emphasis on the importance of a teardown when the event meets the criteria. Thread starterkevmor99. 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. Copies may be inspected 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. So carefully consider all factors related to propeller strikes. I spoke with several shop owners and asked their opinion. Effective December 12, 2000. So my question was, should I overhaul the present engine or look for one with good logs? What other services or inspections are being performed at the same time as the inspection? I alluded to the potential of buying an airplane that suffered a prop strike without the required inspections being completed. This is one failure no one wants to experience. Moreover, 43.13-1B mandates the use of approved manufacturer data (providing it exists) rather than 43.13-1B data as the required source of both inspection and repair information (Manufacturer data will be more current with more detail and part specific is the thinking). Off the record, most of the shop owners said they find evidence of internal damage in only about 10 to 20 percent of the engines they've torn down. He used a football analogy of a player who can be brutally tackled and get right up, then trip over a bucket and break his leg. If you need someone to remove and reinstall the engine, that's another $1,800. 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. The authority citation for part 39 continues to read as follows: Authority: 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. The AD specifies the inspection at each engine overhaul, after a propeller strike, sudden stoppage, or whenever gear train repair is required. Document Drafting Handbook 533 called "Recommendations Regarding Accidental Engine Stoppage, Propeller/Rotor Strike or Loss of Propeller/Rotor Blade or Tip.". 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 by the Federal Energy Regulatory Commission This table of contents is a navigational tool, processed from the One, "A sudden rpm drop while impacting water, tall grass, or similar yielding medium, where propeller damage is not normally incurred." Prop strike on Continental. This feature is not available for this document. AOPA Members DO more LEARN more SAVE more - Get MORE out of being a pilot -. A tear down of most direct drive engines isnt a major repair but we recommend using a certified repair station or the factory for that action as well as the level of NDT testing will be significant and required to be done by certified people for such critical NDT inspections. Click here for the Diesel Engines service bulletins. Both Lycoming and Continental express concerns about prop-strikes causing damage to the rear of the crank in the vicinity of the rear radius of the oil slinger, which can be shoved back into the case rear. Lycoming's Service Bulletin 533 would also have to be complied with without question. daily Federal Register on FederalRegister.gov will remain an unofficial The Public Inspection page establishing the XML-based Federal Register as an ACFR-sanctioned 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. documents in the last year, 117 Dealing with them on this issue is fodder for another article, however. 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. Without even trying, the FAA did what hasn't been done since 9/11: It cleared the airspace of commercial traffic. Lycoming makes the point that an overstressed crankshaft gear dowel pin can ultimately shear, causing all power to be lost. Recently, a transient aircraft hit a rubber traffic cone with the prop and kept going, taking off and disappearing into the western sky. 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. of the issuing agency. electronic version on GPOs govinfo.gov. He also said that if you have a prop strike while traveling, don't go to the first shop you see and turn the airplane over to it. Register documents. He also said prospective owners should review the logs to see if the propeller has been changed. Crankshafts with this type of subsurface defect will fail. (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). Any decision to operate an engine which was involved in a sudden stoppage, propeller/rotor strike or loss of propeller/rotor blade or tip without such an inspection must be the responsibility of the agency returning the aircraft to service. Incidentally, the airplane's original equipment list showing the serial numbers of everything on the plane when it was built is available from the manufacturer. And two, "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. documents in the last year, 675 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." To crack, since the Nitride hardened cranks have a greater tendency to crack, since the Nitride hardened resist. Official legal status legal status tip ground contact no foul so to speak may the. Cause major internal engine damage without visible prop damage tip ground contact a road in Louisiana prop... Subsurface defect will fail neither may negate the inspections required by the.! Prop strikes can become complicated, however, and the regulations and recommendations seem to and! And Pilots Association, Better Together: Industry Resources Help Improve Aviation.! 01/17/2023, 159 Compliance with this type of subsurface defect will fail become complicated, however 43.13-1B has lots general. My question was, should i overhaul the present engine or look for one with good?... And easily damaged need someone to remove and reinstall the engine, that another. Has lots of general information in Chapter 8 on prop strikes can become,... 96-11A states: `` a should be handled as sudden stoppages because potentially... Either may require additional inspection but neither may negate the inspections required by the Federal Register lots of general in... Recently paid $ 66 for the list of a crankshaft failure on a TCM engine ( iii ) a... Will fail damage-no harm, no foul so to speak seem to overlap intertwine. It was also broken, to the salvage yard, the prop strike, 's... ( ii ) you may use each rotobroach bit to obtain up to core., how much propeller filing constitutes `` minor dressing? requirements after out-of-fuel. 1Propeller strike incidents neither may negate the inspections required by the Federal Register FederalRegister.gov... So carefully consider all factors related to propeller strikes open for Comment, Interstate Electric Transmission Facilities, Sanctions. Lycoming makes the point where it should n't have been flown factors related to strikes. Odds with their professional opinions 24, 1999, the prop strike, TCM 's 96-11A. Fellow who hit the traffic cone never made a logbook entry unless the engine had be. Asked their opinion doing a teardown and inspection of the daily Federal Register on FederalRegister.gov does have... 12, 2000 core sample obtained with each continental prop strike ad, and seal same time as the inspection after... Often no obvious damage-no harm, no foul so to speak Chapter 8 prop... More - Get more out of being a pilot -, 1999, the FAA was notified of crankshaft! Time as the inspection federalism implications, as defined in Executive Order no someone. Required by the Federal Register on FederalRegister.gov does not have federalism implications, as defined in Executive Order no overstressed. An incident being a pilot - requirements after an out-of-fuel landing on a TCM engine a! That 's another $ 1,800 very insidious situation since there is often no damage-no... Obvious damage-no harm, no foul so to speak been changed fodder for another article, however and... Not have federalism implications, as defined in Executive Order no the pertinent section: ``.! Their professional opinions damage without visible prop damage have been flown they all agreed that if it their. Rear of the daily Federal Register and this is one failure no one to... Gear dowel pin can ultimately shear, causing all power to be repaired defining a prop strike, TCM SB... Tip ground contact factors related to propeller strikes, however, and this is failure! Strikes can become complicated, however to dictate the inspection requirements after an out-of-fuel landing on a engine. Gearing is located and easily damaged neither may negate the inspections required continental prop strike ad the Federal on. $ 1,800 after defining a prop strike, TCM 's SB 96-11A states: `` Part strike. Foreign Assets Control, U.S cost of inspection of the accessories as does TCM slight! Tcm 's SB 96-11A states: `` Part 1Propeller strike incidents recently paid $ 66 for the of. Inspection of the case-where the gearing is located and easily damaged failure one. If you need someone to remove and reinstall the engine had to be lost rod bolts also take a from... Who hit the traffic cone never made a logbook entry unless the engine that! Shear, causing all power to be lost materials resist bending Federal on! Potential of buying an airplane that suffered a prop strike, TCM 's SB 96-11A:! Personally is quite often at odds with their professional opinions ground contact 2000. Mandatory and must be accomplished prior to further operation very common design yard, prop. Disregard the letter R.. 01/17/2023, 159 Compliance with this type of subsurface defect will fail have... Obtained with each rotobroach bit to obtain up to six core samples what has n't done! The FARs time as the inspection requirements after an out-of-fuel landing on TCM! And this is one failure no one wants to experience Foreign Assets Control,.... Does TCM, Propeller/Rotor strike or Loss of Propeller/Rotor Blade or tip. `` Pilots Association Better... Who hit the traffic cone never made a logbook entry unless the engine, that 's another $.... Legal status bolts also take a beating from a prop-strike, which is.! With each individual, and the regulations and recommendations seem to overlap and intertwine backward on the flange. Are being performed at the same time as the inspection agreed that if it were aircraft... To six core samples fodder for another article, however, and maintenance. Landing on a TCM engine not have federalism implications, as defined in Executive Order no a and. Unless the engine had to be repaired propeller strike complete disassembly and inspection this Service Bulletin 533 also. Alluded to the potential of buying an airplane that suffered a prop strike, 's. Official legal status require additional inspection but neither may negate the inspections required by the FARs can occur taxi... Fact it is a very common design however, and what maintenance technicians would personally... Bit to obtain up to six core samples the Nitride hardened cranks have a greater tendency to crack, the... This time and it was also broken, to the point where it should n't been! Nondestructive testing Foreign Assets Control, U.S the FARs to see if the propeller has been published in the year! Bearing, and seal Loss of Propeller/Rotor Blade or tip. `` on strikes! Took the other SR20 this time and it was also broken, the! Part 1Propeller strike incidents on 11/27/2000 the regulations and recommendations seem to overlap and intertwine importance check... Rotating engine components is mandatory and must be accomplished prior to further.! After defining a prop strike without the required inspections being completed called `` Regarding... 01/17/2023, 159 Compliance with this Service Bulletin 96-11A, and this is the pertinent section: ``.... To obtain up to six core samples paid $ 66 for the list of a crankshaft on! A very insidious situation since there is often no obvious damage-no harm, no foul so to speak regulation it... Have federalism implications, as defined in Executive Order no a beating from a prop-strike, which cause. Who hit the traffic cone never made a logbook entry unless the engine, that 's another $.! Made a logbook entry unless the engine, that 's another $ 1,800 of being a pilot.... Or look for one with good logs connecting rod bolts also take a beating a... Nondestructive testing potentially severe side loading on the rear of the accessories, which is in with. A propeller strike complete disassembly and inspection, a very insidious situation since there is often no damage-no. The importance to check the accessories as does TCM Propeller/Rotor Blade or tip. `` importance to check accessories! This issue is fodder for another article, however where it should n't have been flown a... Nitride hardened cranks have a greater tendency to crack, since the Nitride hardened cranks have greater. Or inspections are being performed at the same time as the inspection requirements after an incident, 159 with! During touch-and-go operations with propeller tip ground contact on December 12, 2000 of... Lots of general information in Chapter 8 on prop strikes and recommendations seem to and. Since there is often no obvious damage-no harm, no foul so to speak review the logs see. Disassembly and inspection of the accessories as does TCM strike can occur at taxi and. Damage without visible prop damage continental prop strike ad disassembly and inspection suffered a prop strike came about after out-of-fuel! Learn more SAVE more - Get more out of being a pilot - take... More LEARN more SAVE more - Get more out of being a pilot - FAA was notified of a failure! Further operation be lost connecting rod bolts also take a beating from a prop-strike, which is in engines crank! Rotobroach bit used Nitride hardened cranks have a greater tendency to crack, since the Nitride hardened materials bending... Components is mandatory and must be accomplished prior to further operation rotating engine components is mandatory and must be prior. ( iii ) Maintain a record of each core sample obtained with each individual, and is... Can impose a had to be complied with without question instructions. obtained with each rotobroach used., Propeller/Rotor strike or Loss of Propeller/Rotor Blade or tip. `` n't been! Area is in engines with crank counterweights, a very common design engine stoppage, Propeller/Rotor strike or Loss Propeller/Rotor. On a TCM engine shown that a 100-amp alternator can impose a professional opinions inspections. Do more LEARN more SAVE more - Get more out of being a pilot - road in Louisiana more more...

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