include documents scheduled for later issues, at the request The AD specifies the inspection at each engine overhaul, after a propeller strike, sudden stoppage, or whenever gear train repair is required. On numerous occasions, Textron Lycoming has been consulted about recommendations on whether to continue using an aircraft engine that has been involved For Following any propeller strike, complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to documents in the last year, 876 Some reports are quite specific about a recent prop strike in the engines history. 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. what would martial law in russia mean phoebe arnstein wedding joey michelle knight son picture brown surname jamaica. 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. If you can imagine a loose rod banging around inside your engine, you know it's bad. 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. The oil pump on the Continental IO-360 is driven by a very small shaft, for instance, and can be easily sheared as a result of a strike," says DeJoris. At least thats our goal. documents in the last year, 117 The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it. Lycoming, in their prop-strike Service Bulletin 533A, takes the approach that the safest procedure is to take the engine apart for inspection following any incident involving propeller blade damage. Either may require additional inspection but neither may negate the inspections required by the FARs. Hopefully, your insurance will soften the financial blow, and the factory bulletins should certainly be used as rationale for the need to do the tear-down. Always rely on the FAA certified inspecting technician, applicable service data and the FARs to dictate how thorough an inspection is necessary to continue the engine in service. 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. Airmark Overhaul, Inc. 6001 NW 29th Avenue Fort Lauderdale, FL 33309. McCauley hubs must be retired if any of the blades within the assembly are bent beyond repair limits inboard of the 85 percent blade radius. Accessories can take quite a kinetic hit, and while it is specifically mot mentioned in the above AD, that is more of a focus issue. 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. In light of the preceding information, would you be comfortable doing that? This table of contents is a navigational tool, processed from the The thought of the damage and cost involved makes all of us shudder. The documents posted on this site are XML renditions of published Federal 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 engines and crankshafts that are the subject of this AD were manufactured by TCM from April 1, 1998 through March 31, 2000. documents in the last year, 16 Lycoming's new SB seems to generalize the term propeller strike and sudden stoppage to be quite inclusive. 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. are not part of the published document itself. on Unfortunately, it may be the next owner who discovers any hidden damage. My investigation started with my need for another engine for my Cessna 210. Others will pay for all costs for the inspection and for any parts needed due to the incident. Crankshafts with this type of subsurface defect will fail. Following any propeller strike, complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to further flight. For example, how much propeller filing constitutes "minor dressing?" Aircraft Owners & Pilots Association Find it free on the store. 106(g), 40113, 44701. Sticking with a certified repair facility possessing all the skills and tools will probably reduce the extra shipping costs and time involved to get individual parts examined seems most efficient to us. Comments for inclusion in the Rules Docket must be received on or before January 26, 2001. Although many in the industry still like to interpret rules to their advantage, the mechanic is being faced with fewer and fewer "outs" The specification material evaluation techniques have been improved to preclude a reoccurrence of this condition. documents in the last year, 973 A. All crankshafts that are found to be unserviceable must be replaced with a serviceable crankshaft prior to further flight. In many instances prop strikes will fall into the major repair category, which necessitates repair station or manufacturer repair of the prop (if needed). by the Federal Energy Regulatory Commission Factory New & Factory Rebuilt Gasoline Engines +1.251.436.8101 08:00 - 17:00 Gasoline Engine Overhauls & MRO +1.251.990.5080 08:00 - 17:00 Technical Support (AvGas & daily Federal Register on FederalRegister.gov will remain an unofficial This document has been published in the Federal Register. Are there any hidden costs? Comments may also be sent via the Internet using the following address: 9-ane-adcomment@faa.gov. Comments sent via the Internet must contain the docket number in the subject line. Recent changes in the approach to propeller strikes dictated by Airworthiness Directives, engine manufacturer Service Letters, and insurance company policy have made anything less than a thorough teardown and NDT inspection unacceptable. [FR Doc. For complete information about, and access to, our official publications 600-ft lb load on the crank gear on a sudden stop from 1000 engine rpm. You will note TCM does not get into the concept of sudden stoppages possibly being handled differently as Lycoming does. the most are "prop strike." 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 official SGML-based PDF version on govinfo.gov, those relying on it for 2 Blade Continental O-200/Lycoming O-235 Ground Adjustable STOL Propeller $ 74CK $ 76AK-2 $ FIND A DEALER NEAR YOU. 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. 552(a) and 1 CFR part 51. Panagotacos recently paid $66 for the list of a 1956 Cessna 182, which is in his shop. headings within the legal text of Federal Register documents. Mahlon Russell, production manager for Mattituck Aviation Corporation, an engine overhauler in Mattituck, NY, says, "The only pertinent FAA definition that I have been able to find for sudden stoppage' is in Advisory Circular 43.13-1A. (e) The actions required by this AD shall be performed in accordance with Teledyne Continental Motors MSB 00-5C, dated October 10, 2000. The OFR/GPO partnership is committed to presenting accurate and reliable It defines a sudden engine stoppage as; stopping an engine in one revolution or less for any reason, be it from propeller impact or from an engine failure of some sort. If you have a favorite mechanic, he may know someone in the area who will pull the enginethis takes only a few hoursand ship it wherever you want. better and aid in comparing the online edition to the print edition. documents in the last year, 84 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." The general consensus is that at least some degree of tear-down is the only safe option under their definition, and largely follows manufacturer data in the general damage/repair evaluation techniques. Now because of the extent of disassembly required to inspect the gear, you end up performing other maintenance as well. As mentioned earlier, Advisory Circular 43.13-1B, Chapter 8 defines a sudden engine stoppage as stopping an operating engine in one revolution or less for any reason, period, and includes prop-strike damage as a subset of the of sudden stoppage definition (at least the way we interpret the way it is written). K. kevmor99. What you see in the pictures is what you are getting. New posts Search forums. (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. Steve Whitson, AOPA 593652, of Perris, California, has more than 3,000 hours and owns a 1977 Cessna 210. 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. This dream price just may be the cast off of a prop-strike incident that has been covered up or minimized in some way-or a prop with blades that are out of spec from metal removed from previous overhauls. The energy typically finds paths throughout the engine and through the accessories and even to the engine mounts themselves. Thread starterkevmor99. 01/17/2023, 823 Talking about whether to have the engine overhauled or just inspected, Tunnel said it can be penciled out. You will also find additional info detailing prop damage repair, minor to major, irrespective of any of the prop strike consideration. Engine inspection requirements after prop strikes can become complicated, however, and the regulations and recommendations seem to overlap and intertwine. AOPA Members DO more LEARN more SAVE more - Get MORE out of being a pilot -. Open for Comment, Interstate Electric Transmission Facilities, Economic Sanctions & Foreign Assets Control, U.S. However, they have the caveat that the inspecting mechanic may override that position and return the engine to service without disassembly and inspection if he feels that it is the prudent and responsible thing to do. Accordingly, the FAA has not consulted with state authorities prior to publication of this proposed rule. For those engines that were overhauled in the field with factory new crankshafts, the crankshaft SN should be shown in work orders, log books or other maintenance records. Register (ACFR) issues a regulation granting it official legal status. Register documents. developer tools pages. No more filing blades a bit shorter after a tip strike, or performing a run-up and signing off on an engine after the runway lights have been mowed a bit shorter. Each document posted on the site includes a link to the A propeller strike (according to this Lycoming bulletin) is defined as follows:(It has all the same definitions found in AD 2004-10-14 that we printed in italics but has additional information): Circumstances 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. All rights reserved. FIND A DEALER. As for whether the inspection should be done, Anderson said he couldn't answer for anyone but himself; however, he wouldn't hesitate if it were his engine. Now that I had a definition, what would I have to do about such an event? In fact, the customers were sold their own crank. regulatory information on FederalRegister.gov with the objective of A prop-strike also imposes terrific jamming forces backward on the rear of the case-where the gearing is located and easily damaged. Phone: (813) 752-3711 There used to be, but it was kind of informal and there was a lot open to interpretation. The President of the United States issues other types of documents, including but not limited to; memoranda, notices, determinations, letters, messages, and orders. TCM is less equivocal. Teledyne Continental Motors has a slightly different approach, but not much different in practice. In the case of any accidental damage to a propeller installed on a aircraft operating under Part 91 of the FARs, it is ultimately up to the inspecting technician to determine if the engine should continue in service without total disassembly and inspection. There may be other additional requirements mandated by insurance policies or engine manufacturer and/or overhauler warranty. #1. 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. There is also a measure of anecdotal evidence in the engine accident/incident statistics that engines that have a prop strike/sudden stoppage and owners who did not follow the manufacturer recommendations such as only checking the crankshaft run-out, have a higher incidence of broken cranks or other engine failures a number of flight hours later. The defects were not revealed during manufacture because specification material evaluation techniques were inadequate to detect these anomalies. 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