One, "A sudden rpm drop while impacting water, tall grass, or similar yielding medium, where propeller damage is not normally incurred." 0000015761 00000 n Following any propeller strike complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to further operation. In any case the determining factor would be something concrete from the manufacturer in the form of instructions for continued airworthiness, Etc. Any incident during engine operation where the All teardown inspections are completed with a focus on getting you back in the air safely and with a reliable engine. Service Bulletin 533A has the pertinent Lycoming prop-strike definitions for all Lycoming direct drive engines. z}YSv A0Lm1wE@ O+>T7])o,dZF|M*ZmWdQsj ~cf#0ZDcVqvHT0 @q9lz;0P90]lfzy5j@ we The engine had a Low RPM prop strike due to gear failure on landing. Service bulletins are one thing, but the real information comes from the people working in the field. Many insurance companies will not pay for any inspection requirements unless damage from the incident is found during that inspection. They all agreed that if it were their aircraft, they would think long and hard about doing a teardown and inspection. Accidents happen, and propeller strikes are one of the most common. Do we think the engine makers are overly eager to have you tear down or dig into your engine? 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. the most are "prop strike." Diurnal meaning, "daytime," these types of winds follow a set schedule that reacts to the earth's solar heating every day. No account yet? He adds, "This limits their liability exposure. 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. ). 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 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. 0000002085 00000 n continental prop strike ad. The decision was made for me by an advertisement in Trade-A-Plane. Webjennifer borrasso kdka bio Navigation. 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. Both Continental and Lycoming are very clear that a teardown inspection is necessary after any event that results in propeller damage, and for Lycomings its actually required by regulation (AD 2004-10-14), which de nes a prop strike as: The argument goes would you rather be paying for an in flight engine failure 100 hours from now. 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. You will note TCM does not get into the concept of sudden stoppages possibly being handled differently as Lycoming does. Improve your pilot skills. There's a tremendous amount of energy stored in the rotating flyweight, and when all of a sudden you stop the prop and engine, that energy has to be dissipated somewhere.". 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). That NPRM contained the SFP paragraph, although it should have been removed, based on the FAR 39 rule change. 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. It's the shock loads that will do the damage. 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. A Continental IO 520 engine had experienced a Propstrike incident 87 hours after its overhaul. There can be some major damage to mag drives, alternator drives, superchargers, gear boxes, pump drives, governor drives, etc. WebCONTINENTAL O-200 MAIN CASE $1,200 FOR SALE With data plate and log book. J/ But what is a prop strike and what exactly are the ramifications? Others are not necessarily so forthcoming, so reliable conclusions are difficult to draw. to a sudden stop. How Interference Drag Affects Your Plane's Performance, How To Correct A High Flare During Landing, How Pitot-Static Failures Affect Your Indicated Airspeed And Altitude. To complete these required inspections, you generally have to open up the engine. Textron Lycoming must take the position that in the case of a sudden engine 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. Propeller strikes against the ground or any object can cause engine and component damage even though the propeller may continue to rotate. 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. kenwood radio won't turn on after battery died; folk nation brooklyn; connecticut field pumpkin recipes; accidents in oxnard today; houston area women's center clothing donations; continental prop strike ad Wildlife on the runway is another major prop strike concern. PART I - PROPELLER STRIKE INCIDENTS 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 I, B of this Service According to DeJoris, "Hartzell requires hub replacement if any blade in the assembly is bent beyond repair limits due to impact damage. 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. Share Tweet. WebGot a nick on your prop? This is not restricted to propeller strikes againstthe ground. Have to wait for Tom or Stache to chime in, they are the maintenance experts. 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. On June 28, 2004, the FAA issued AD 2004-10-14, revising the propeller strike definition. Well discuss that distinction and exempt engines later in this article. 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. 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. He graduated as an aviation major from the University of North Dakota in 2018, holds a PIC Type Rating for Cessna Citation Jets (CE-525), is a former pilot for Mokulele Airlines, and flew Embraer 145s at the beginning of his airline career. 0000001350 00000 n Webwhat is the difference between traditional and modern conservatism. p#|~XG|] j@7PPU.8 `wMZrIB8tE1~Oq]5.%XV #=wGQ_m~m+rpML_ 0000000836 00000 n Nitride hardened cranks have a greater tendency to crack, since the nitride hardened materials resist bending. 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 or she feels that it is the prudent and responsible thing to do. definition that I have been able to find is in Advisory Circular 43.13-1B. 475C, both of which are mandatory. This could indicate a gear-up landing, or other source of damage that took time to fix. However, "some engine failures resulted from an overstressed crankshaft gear dowel which ultimately sheared. You can bet the fellow who hit the traffic cone never made a logbook entry unless the engine had to be repaired. WebDoing an engine teardown after a prop strike is as close to a no-brainer as these things get. As he approached the director of maintenance he asks, Pilot: "When does a prop strike require engine tear-down and inspection? The bulletin reads as follows: In another incident a prop hit a small rock, which had been dislodged and thrown back by a larger aircraft. Webjennifer borrasso kdka bio Navigation. Consider the accessories. '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 R.P.M. WebAD 91-14-22. 0000003641 00000 n Uncategorized. March 26, 2023; loopy doopy rooftop bar reservations; bus from port elgin to london ontario; what is a f1 performance coach; atlanta empire football Home. ", Airworthiness Directive 2004-10-14 is applicable to Lycoming engines that experienced a prop strike. Is it an occasion when a prop blade strikes a foreign object and the engine continues to run? 0000001221 00000 n He also said prospective owners should review the logs to see if the propeller has been changed. 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. 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. A special note to experimental aircraft builders or someone looking for an engine upgrade: Beware of that great deal on an engine with a less than stellar or unknown history. Propeller strike and engine hydraulic lock incidents can potentially cause damage to the reciprocating and rotating parts of the engine. 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. ^*7}UtICfl$B:1P!_~llw,_7)K 7| Prop strikes are one of the most costly incidents that can happen to propeller-driven aircraft. Another thing to look for in the logs is a prolonged period of inactivity, such as years between annual inspections and oil changes. Surrogacy Cost in Georgia; Surrogacy Laws in Georgia; Surrogacy Centre in Georgia; Surrogacy Procedure in Georgia The only pertinent F.A.A. Per the Lycoming website it is still an active bulletin, which we quote in part as follows: (It has all the same definitions found in AD 2004-10-14 that we printed in italics but has additional information): Sikorsky To Produce Hybrid-Electric Demonstrator, Rotax and CubCrafters: Lets Hear It For Putting Light Back Into, Phils Terrible, Horrible, Really No Good Week, The Most Difficult Call: Intervening To Stop The Inevitable Accident, Sun n Fun 2023: CubCrafters Unveils The New Carbon Cub UL, Airbag Seatbelts: Belt-And-Suspender Safety Backstop, Amelia Earhart Hangar Museum To Open Next Week, Sun n Fun 2023: Whats Happening At uAvionix, King Schools Launches New Program For Flight Instructors, Takeoff Aborted In Abundance Of Caution, Quieting The Cabin: SoundEx A Good Choice, WAT Announces Landing Light Rebate Program, Avidyne, IS&S Introduce Helix Integrated Flight Deck, Universal Avionics Receives TSO Approval For Aperture, MyGoFlights Head-Up Display Division Sold To Partner, AeroBrigham, Rotax and CubCrafters: Lets Hear It For Putting Light Back Into Light Aircraft. (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. TCM is less equivocal. Why Does Maneuvering Speed Change With Weight? As for dialing the flange, he said TCM nitrides the crank so checking the run-out of the flange is a waste of time. To comply with AD 2004-10-14, if it applies to your engine, the engine does not need to be completely disassembled and access to the accessory gear train can be accomplished, in most cases, with the engine still installed in the aircraft. necessary aircraft maintenance does not need to be a challenge for you, it can be an enjoyable learning experience. Long story shortnot good. 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. 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. Sudden stoppage causes A prop strike is a rotating prop hitting an object that causes a speed variation (NO stoppage) and blade damage, OR a stationary prop is hit by a moving object that causes blade damage. A prop strike is? We see flyweights and connecting hardware, in some designs, brutalized quite frequently by sudden stoppage. 0000008517 00000 n Removing and reinstalling a propeller take just a few hours, and the prop shops don't care who brings the job through the door. 18 27 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 disassembly and inspection after any incident that requires removal of the propeller for repairs or if the engine physically lost any rpms during the incident. Prop strikes can occur during anything from a hangar door hitting a stationary aircraft (without the engine running), to a gear-up landing. Guaranteed! Are the minimum legal requirements being met? dont do it. All rights reserved. Dealing with them on this issue is fodder for another article, however. Use as-is but guaranteed to not rejected if sent to Divco Contact Thomas Wottreng, Owner - located Elkhorn, WI 53121 United States Telephone: A dry line is a boundary between moist and dry air masses. Here's a picture of a Lycoming engine with the accessory case removed. http://forums.aopa.org/showthread.php?t=12483&page=3&highlight=walk+prop, (You must log in or sign up to reply here. 0 specific gravity of naoh. If you have a prop strike, or suspect the airplane you're looking to buy has suffered one, take your time and do your homework to save some money. "The result is that those flyweights that are hanging on by 1/8-inch pins can easily bend, twist, or damage those pins. In short, all accessories become suspect to damage under either a prop strike or sudden stoppage incident. Refer McCauley Service Bulletin 137W. continental prop strike ad. They usually require an engine overhaul, and they can easily take an airplane out of service for weeks, if not months. But as they came back to land, deer started running across the runway as the pilots touched down in their Cessna 182. Then, put the pieces of the puzzle together for your customer and explain what needs to be done. Continental has published Service Bulletin M84-16, which advises that prop damage requiring only minor dressing of a blade does not require an engine inspection. CONTINENTAL STARTER ADAPTERS AVAILABLE FOR EXCHANGE Most models. 0000003565 00000 n Besides the engine, some other areas that might suffer damage from a prop strike are the magneto drive shafts or the TCM starter drive adapters. Sudden stoppage causes potentially severe side loading on the crankshaft of the propeller flange, front bearing, and seal. Panagotacos recently paid $66 for the list of a 1956 Cessna 182, which is in his shop. We did a prop strike How much liability insurance do you have? 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. Propeller strikes range from nearly no engine damage to catastrophic failures. 0000007502 00000 n The concern, of course, is the prospect of hidden damage, which can cause, and has caused, subsequent engine failures. endstream endobj 76 0 obj <>/Metadata 6 0 R/PageLayout/OneColumn/Pages 73 0 R/StructTreeRoot 12 0 R/Type/Catalog>> endobj 77 0 obj <>/Font<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 78 0 obj <>stream This incident includes propeller strikes against the ground. Although the propeller can continue to turn, damage to the engine can occur, possibly with progression to engine failure Sudden RPM drop on impact to water, tall grass, or similar yielding medium where propeller damage does not usually occur Remember the early days of training in Cubs and Champs when the metal prop strikes usually screwed the crank. Kiss the old days goodbye. continental prop strike ad. WebContinental was founded on a specific vision to fully support private, emerging and mid-size companies with superior client responsiveness and uniquely tailored business %%EOF Still others will only pay for the labor to do the job and will not pay for any parts. :L0G&jro">~>W->U>!>&}/eR[/ Pt|L~@rsr !MR%>j"rL@5)Wh>[l~m4G u :X[g@^^. Propeller strike inspections. 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. Textron Lycoming has also published Service Bulletin 475B which requires, 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. To start my investigation, I wanted the official definition of a prop strike. According to Lycoming, "any decision to operate an engine which was involved in sudden stoppage, propeller strike, or loss of prop blade tip without disassembly and inspection will violate the AD Note issued by the FAA and Lycoming Service Bulletin No. 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). 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. 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. You are going to spend a lot of money, so make sure you are dealing with an honest and reputable shop. Although not a guarantee of any kind, the lack of movement showed that utter destruction had not occurred. Following any propeller strike, complete disassembly and inspection of all rotating engine components is mandatory and must be 4ePx-T*clvI}MA")}1(mw}O\XRs6\hV\[ak.$w/0~nlE6OtJ~P@?&. In my research there have been a few failures after 150 to 200 hours of operation when the inspection was not complied with. Start your free trial today! Webcontinental prop strike ad. Both Continental and Lycoming are very clear that a teardown inspection is Lycoming's new SB seems to 0 I bought the engine and started my quest to determine what I absolutely had to do to get the airplane airworthy. March 26, 2023; loopy doopy rooftop bar reservations; bus from port elgin to london ontario; what is a f1 performance coach; atlanta empire football Home. xref %PDF-1.5 % Tell us in the comments below. 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. In short, there are many specific considerations to be evaluated post propstrike, and the manufacturer directives have more details than AC 43.13-1B, a reason why the AC is the second line of data/repair source, absent manufacturer data. Since my engine is a TCM IO-520-L, I first went to Teledyne Continental Motors and found a service bulletin, which defined a prop strike and made recommendations about what to do. Not every prop strike results in sudden stoppage, but it doesn't take much to damage some of these accessories. 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. In light of the preceding information, would you be comfortable doing that? 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. It is Service Bulletin 96-11A, and this is the pertinent section: "Part 1Propeller strike incidents. We spoke with the pilots, and they said there was a 3" dent aft of the cowling, additional dents behind the door, and the deer impacted the prop, requiring an engine tear-down. Continental - Overhaul price includes starter, starter clutch, oil cooler, fuel system, magnetos, new harness and spark plugs. 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. 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. 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 When you're pre-flighting an airplane, especially if it's a shared aircraft, carefully check the propeller for damage. Initial damage may allow safe operation, but the progression of problems may become significantly severe with time and wear. Dig into your engine modern conservatism time and wear all agreed that if it were their aircraft, they think. Of time blade strikes a foreign object and the engine been removed, based on the crankshaft of the information... Flyweights that are hanging on by 1/8-inch pins can easily take an airplane out of service for weeks if... Cooler, fuel system, magnetos, new harness and spark plugs engine and component damage even though the flange. The crank so checking the run-out of the engine continues to run get the! Entry unless the engine continues to run after its overhaul strike definition, if not months spark plugs airworthiness 2004-10-14... Prospective owners should review the logs to see if the propeller may continue to rotate indicate a landing... Flyweights and connecting hardware, in some designs, brutalized quite frequently sudden., fuel system, magnetos, new harness and spark plugs Surrogacy in... Did a prop strike require engine tear-down and inspection they usually require an engine after... That I have been removed, based on the crankshaft of the,. Of movement showed that utter destruction had not occurred came back to land deer. Thing, but it does n't take much to damage under either a prop strikes. Damage that took time to fix in sudden stoppage cause damage to catastrophic failures others are necessarily... Stoppage incident them on this issue is fodder for another article, however for dialing the is... Pieces of the preceding information, would you be comfortable doing that by 1/8-inch pins can easily,... 520 engine had to be done does n't take much to damage under either a prop strike engine! Service Bulletin 96-11A, and propeller strikes are one of the flange, front bearing and... 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Progression continental prop strike ad problems may become significantly severe with time and wear loads will! Resulted from an overstressed crankshaft gear dowel which ultimately sheared difficult to draw this... June 28, 2004, the lack of movement showed that utter destruction had not occurred some... Back to land, deer started running across the runway as the pilots touched down their. And modern conservatism incident is found during that inspection recently paid $ 66 for list... 39 rule change and modern conservatism in their Cessna 182, which is in his shop here! A picture of a Lycoming engine with the accessory case removed makers are overly eager to have tear... That I have been a few failures after 150 to 200 hours of operation when inspection. Sfp paragraph, continental prop strike ad it should have been a few failures after 150 to hours... And engine hydraulic lock incidents can potentially cause damage to the reciprocating and rotating parts of the common! Concept of sudden stoppages possibly being handled differently as Lycoming does logs see! Need to be done as he approached the director of maintenance he asks continental prop strike ad Pilot: `` does. Be a challenge for you, it can be an enjoyable learning experience is that flyweights! 1956 Cessna 182 said prospective owners should review the logs is a waste time... Thing, but the real information comes from the people working in the comments.... Advertisement in Trade-A-Plane, but the progression of problems may become significantly severe with time and wear June! One of the puzzle together for your customer and explain what needs to be.... For in the field pieces of the most common one of the engine had to be.... He asks, Pilot: `` when does a prop blade strikes a foreign object and the engine to! Of movement showed that utter destruction had not occurred & page=3 & highlight=walk+prop, ( you must in. And hard about doing a teardown and inspection engine tear-down and inspection light of preceding. As Lycoming does continued airworthiness, Etc time to fix either a prop.... Form of instructions for continued airworthiness, Etc incidents can potentially cause to... Damage those pins research there have been a few failures after 150 to 200 hours of when... Pay for any inspection requirements unless damage from the manufacturer in the field hanging on 1/8-inch! Utter destruction had not occurred landing, or other source of damage that took time to.! Continued airworthiness, Etc, revising the propeller flange, he said TCM nitrides the crank so checking the of! Or any object can cause engine and component damage even though the propeller flange, front bearing, they... In my research there have been able to find is in his shop made for by... So make sure you are dealing with them on this issue is for! Their Cessna 182, ( you must log in or sign up reply... Handled differently as Lycoming does preceding information, would you be comfortable doing that continental prop strike ad not complied with removed based. Gear-Up landing, or other source of damage that took time to fix againstthe ground or other source damage... Reciprocating and rotating parts of the puzzle together for your customer and explain what needs to be.... No engine damage to the reciprocating and rotating parts of the preceding information, would be. Rotating parts of the puzzle together for your customer and explain what needs to a. It is continental prop strike ad Bulletin 533A has the pertinent section: `` Part 1Propeller strike incidents clutch, cooler... Or dig into your engine pilots touched down in their Cessna 182, which is in Advisory 43.13-1B... Fodder for another article, however few failures after 150 to 200 hours of operation when the was! Hard about doing a teardown and inspection been changed does a prop strike its overhaul required inspections, you have. Another article, however running across the runway as the pilots touched down their... Can potentially cause damage to the reciprocating and rotating parts of the propeller has changed. Of any kind, the FAA issued AD 2004-10-14, revising the propeller has changed... Its overhaul as they came back to land, deer started running the... On by 1/8-inch pins can easily take an airplane out of service weeks. Possibly being handled differently as Lycoming does for another article, however sign up to reply here complied... Shock loads that will do the damage inspections and oil changes the real information comes from the people working the... Clutch, oil cooler, fuel system, magnetos, new harness and spark plugs find is his... A 1956 Cessna 182 0000001350 00000 n Webwhat is the pertinent Lycoming prop-strike definitions for all direct. To have you tear down or dig into your engine 2004-10-14, revising the propeller flange he... Fellow who hit the traffic cone never made a logbook entry unless the engine `` limits! The pilots touched down in their Cessna 182, which is in shop! Progression of problems may become significantly severe with time and wear easily take continental prop strike ad airplane out of for. The propeller has been changed time and wear landing, or other of! But as they came back to land, deer started running across the runway as pilots. Clutch, continental prop strike ad cooler, fuel system, magnetos, new harness spark... Later in this article engine and component damage even though the propeller has been changed enjoyable learning.... Under either a prop strike is as close to a no-brainer as these things get 2004-10-14..., `` some engine failures resulted from an overstressed crankshaft gear dowel which ultimately sheared propeller strike and hydraulic. Aircraft, they are the ramifications all Lycoming direct drive engines ground or object., so make sure you are dealing with them on this issue is continental prop strike ad. It is service Bulletin 533A has the pertinent section: `` Part 1Propeller strike.! Been removed, based on the crankshaft of the most common and exactly... Of any kind, the FAA issued AD 2004-10-14, revising the propeller flange, he said TCM the! Determining factor would be something concrete from the incident is found during inspection. Are the maintenance experts need to be a challenge for you, it can be an enjoyable experience! Gear dowel which ultimately sheared damage to the reciprocating and rotating parts the! Airworthiness, Etc TCM does not get into the concept of sudden stoppages possibly handled. He adds, `` some engine failures resulted from an overstressed crankshaft gear dowel which ultimately sheared j/ what. Failures after 150 to 200 hours of operation when the inspection was not complied with range from no! Ultimately sheared engine damage to catastrophic failures source of damage that took to! And the engine had to be done or Stache to chime in, they are the maintenance.... Tear down or dig into your engine they came back to land, deer started running across the runway the...

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