offers a preview of documents scheduled to appear in the next day's According to DeJoris, "Hartzell requires hub replacement if any blade in the assembly is bent beyond repair limits due to impact damage. 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. 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. The accident was recorded on video and available on the Internet. A prop strike-per the manufacturer and FAA definition is not often found to be minor other than the occasional small stone picked up causing minor blade damage but no rpm loss or prop removal is required for the repair, and those are key elements on the need for an engine tear-down-engine rpm loss or sudden stoppage from the strike. Aircraft Owners & Pilots Association Find it free on the store. A propeller strike, no matter how minor the incident, should not be ignored. Even if theres no visible damage to the propeller, there may be hidden internal damage to the propeller, governor, crankshaft, and other components that can cause engine failure later in the engines life, if not immediately. 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. 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. Dye Penetrant test didn't show any cracks on the flange, runout is .001 which is well within tolerance. Or it could be an engine with illegal performance enhancements for a certified engine such as shaved decks to increase compression. documents in the last year, 1401 Federal Register. 49 U.S.C. 's Service Bulletin 96-11, in a nutshell, says that if a propeller must be removed from the aircraft to be repaired following a propeller blade impact of any sort or if the engine physically lost rpms from the incident, then the engine has experienced a propeller strike and it should be removed from service and completely disassembled and thoroughly inspected for damage from the incident." 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. on NARA's archives.gov. Counts are subject to sampling, reprocessing and revision (up or down) throughout the day. This occurred during several discrete periods, i.e. That said, we did an article a few years ago where an owner of an old Bonanza bought an IO-520 engine from another Bonanza engine owner who upgraded to a factory IO-550. All comments submitted will be available, both before and after the closing date for comments, in the Rules Docket for examination by interested persons. documents in the last year, by the Veterans Affairs Department Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. on FederalRegister.gov 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. Start with all relative ADs, collect all service bulletins and service letters offered by the particular engine manufacturer, and sit with the insurance adjuster. The engines and crankshafts that are the subject of this AD were manufactured by TCM from April 1, 1998 through March 31, 2000. Prop strike on Continental. Per the Lycoming website it is still an active bulletin, which we quote in part as follows: On numerous occasions Textron Lycoming has been consulted about recommendations on whether to continue using an aircraft engine that has been involved 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 one failure no one wants to experience. Kiss the old days goodbye. Register, and does not replace the official print version or the official More information and documentation can be found in our Its also important to point out that this is not the only Lycoming bulletinthat discusses prop strikes. Basically the fuel gauges in the center console are shorting out. 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. Do we think the engine makers are overly eager to have you tear down or dig into your engine? 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's also the cost of inspection of the accessories, which is extra. New posts Search forums. Refer McCauley Service Bulletin 137W. You can bet the fellow who hit the traffic cone never made a logbook entry unless the engine had to be repaired. CONTINENTAL TSIO-520-J $18,995 FOR SALE Engine with Accessories TSMO=488.2 No Prop Strike Photos, logs, details per request. Posted at 11:12h in don franklin oil change somerset ky by royal The following was overheard recently at a maintenance facility after a very irritable looking pilot walked in with a look of embarrassment on his face. Register documents. Lycoming also has a short, two-page separate, specific prop-strike bulletin, SB533A, which is dated in 1999, five years earlier than AD 2004-10-14, and four years earlier than SB 475C. 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. The answer is yes, you can ignore the directive to the same degree that any one who operates under Part 91 does with any other service directive without the force of an AD behind it. Lycoming makes the point that an overstressed crankshaft gear dowel pin can ultimately shear, causing all power to be lost. The opinions differ with each individual, and what maintenance technicians would do personally is quite often at odds with their professional opinions. The concern, of course, is the prospect of hidden damage, which can cause, and has caused, subsequent engine failures. +1.251.436.8122 08:00 - 17:00 Gasoline Engines Parts +1.972.586.1000 24 hours Avionics +1.251.990.5080 08:00 - 17:00 Latin America 02:12 ART Factory New & Factory Rebuilt Gasoline Engines +1.251.436.8101 10:00 - 19:00 Gasoline Engine Overhauls & MRO +55.11.99923.9579 08:00 - 17:00 Technical Support (AvGas & Jet-A) +1.888.826.5465 09:00 - Say the engine is turning only 1000 rpm, barely above an idle. Register (ACFR) issues a regulation granting it official legal status. 01/17/2023, 202 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. 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. A bit of homework will go a long way towards helping you persuade your customer to do the right thing. Unfortunately, it may be the next owner who discovers any hidden damage. Now that I had a definition, what would I have to do about such an event? Thread starter kevmor99; Start date Sep 28, 2016; K. kevmor99 Includes: Fuel Injection Spyder Starter Alternator Bendix Magnetos Gamijectors I will be more than happy to ship this engine to you. of the issuing agency. the Federal Register. Inspect all engine accessories in accordance with the manufacturer's instructions.". To start my investigation, I wanted the official definition of a prop strike. My group also argued about the propeller hitting grass and water. 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 If you've attended AirVenture or any of the other major airshows, you've heard it. 533 called "Recommendations Regarding Accidental Engine Stoppage, Propeller/Rotor Strike or Loss of Propeller/Rotor Blade or Tip.". These can be useful As he approached the director of maintenance he asks, Pilot: "When does a prop strike require engine tear-down and inspection? Prop strike. These two words are guaranteed to make any pilot wince. Kennedy Airport Jetliner Aborts Takeoff To Avoid Another Jet Crossing Runway, FAA Says; Agency Investigating, FAA Releases Audio From Deadly Wings Over Dallas Air Show Crash Between Air Boss, Pilots, Year-End Surge Boosts Boeing, but Airbus Still No. Accordingly, the FAA has not consulted with state authorities prior to publication of this proposed rule. stoppage inspection, we are your source for engine 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. Not every prop strike results in sudden stoppage, but it doesn't take much to damage some of these accessories. On Lycoming engines, which are not nitrided, the flange can be bent. Information about this document as published in the Federal Register. Following any propeller strike, complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to 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. A prop strike can happen to anyone at anytime, but fortunately, few involve injury. Sensenich Wood Propeller Co. 2008 Wood Court Plant City, FL 33563. on If the engine was assembled new, rebuilt, or overhauled on or before March 31, 1998, or on or after April 1, 2000, no action is required. 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 on (ii) If TCM notifies you that the crankshaft is serviceable, the propeller assembly may be reinstalled. The thought of the damage and cost involved makes all of us shudder. 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