continental prop strike adwhat happened to roberto alcaino

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 engines and crankshafts that are the subject of this AD were manufactured by TCM from April 1, 1998 through March 31, 2000. That AD requires removing a core sample of material from the propeller mounting flange and sending the core sample to TCM for evaluation. documents in the last year, 946 documents in the last year, 830 include documents scheduled for later issues, at the request This airworthiness directive (AD) applies to each engine identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. According to the salvage yard, the prop strike came about after an out-of-fuel landing on a road in Louisiana. 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. 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. better and aid in comparing the online edition to the print edition. 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. 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. Interested persons are invited to comment on this rule by submitting such written data, views, or arguments as they may desire. The investigation revealed that the crankshafts failed due to subsurface defects in the number one crankshaft connecting rod journal. In light of the preceding information, would you be comfortable doing that? Is the engine being completely disassembled and inspected? AC 43.13-1B has lots of general information in Chapter 8 on prop strikes. 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. the Federal Register. For complete information about, and access to, our official publications can easily create significant internal stresses, such as stress cracks and loosened attaching hardware. the official SGML-based PDF version on govinfo.gov, those relying on it for The engine makers seem to agree quite strongly as does the FAA. 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. Sensenich Wood Propeller Co. 2008 Wood Court Plant City, FL 33563. Yet, the company recently published a new Service Bulletin, SB No. It is recommended that the technician views and understands Instructional Video for Compliance with Teledyne Continental Motors Mandatory Service Bulletin MSB 00-5C before performing these procedures. That engine may be a time bomb, and an illegal one if the data plate is still on the engine, as after some mods it no longer qualifies as a certified engine, and may not be economically able to be recertified, depending on what was done to it. These tools are designed to help you understand the official document I spoke with several shop owners and asked their opinion. developer tools pages. Information about this document as published in the Federal Register. How much liability insurance do you have? 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. This year's numbers have placed us in the top 10, highlighting another strong year of property development. (f) This amendment becomes effective on December 12, 2000. Now that I had a definition, what would I have to do about such an event? Type of operator/engine makes a difference (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. It turned out to be a salvage shop and the owner confirmed that the logs for the engine were available, and the crank had been dialed, and found to be OK. Dialing checks the run-out, which is the amount of movement at the flange when the crank is rotated. 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. 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 Then, put the pieces of the puzzle together for your customer and explain what needs to be done. Phone: (813) 752-3711 Unfortunately, disassembly and nondestructive testing procedures are the only way to provide a reasonable level of assurance that the engine is truly fit for continued service. Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the Atlanta ACO. the most are "prop strike." In this Issue, Documents The engine for sale was the model I needed, with about 1,000 hours since a factory overhaul. Not every prop strike results in sudden stoppage, but it doesn't take much to damage some of these accessories. The deffination of a prop strike is different on Lycomings than Continentals, Lycoming says any time a prop strikes any thing that will cause a loss of RPM it is a prop strike. The decision was made for me by an advertisement in Trade-A-Plane. During the subsequent takeoff, the airplane's right wing hit the mirror of a semitruck, which veered the airplane into a fire truck and eventually a ditch. 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. DeJoris, who deals with propeller strike issues quite frequently says, "We recently had a customer with a prop strike who struck a steel stake that cut 1/4-inch of the tip off one blade of a three bladed prop. Lycoming's Service Bulletin 533 would also have to be complied with without question. Following any propeller strike, complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to further flight. Are any of the engines accessories inspected as they should be, and if so to what extent? 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. 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. 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. 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." One, "A sudden rpm drop while impacting water, tall grass, or similar yielding medium, where propeller damage is not normally incurred." Bending loads alone are not the only destructive element, and nondestructive testing of the entire crank and associated structures is the only reasonable way to check it out. A prop-strike also imposes terrific jamming forces backward on the rear of the case-where the gearing is located and easily damaged. Docket 2000-NE-16-AD. documents in the last year, 274 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. Consider the accessories. These cases should be handled as sudden stoppages because of potentially severe side loading on the crankshaft flange, front bearing, and seal.". A full overhaul will cost about $12,500 plus accessories. Just a few short months ago, Textron Lycoming's Service Letter L-163C recommended taking the engine apart for inspection following any incident involving propeller blade damage. Register, and does not replace the official print version or the official Unfortunately, it had experienced a prop strike. documents in the last year, by the Federal Communications Commission "It" 2023 Aviation Publishing Group. When a prop strike incident occured, standard industry accesptance was to have the mechanic remove the propeller and dial indicator, "or check the crankshaft flange for being out of limits." on FederalRegister.gov TCM SB 96-11B defines a propeller strike as follows, and we paraphrase: First, any incident, whether or not the engine is operating, that requires repair to the propeller other than minor dressing of the blades, for instance where the propeller is damaged by a small foreign object during operation, such as a small stone. provide legal notice to the public or judicial notice to the courts. How much more time before overhaul is remaining on the engine? 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 actions specified by this AD are intended to prevent fracture of the crankshaft connecting rod journal, which could result in total engine power loss, in-flight engine failure and possible forced landing. 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 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. The actions are required to be accomplished in accordance with the service bulletin described previously. Both major engine manufacturer's have service literature that explains the desired course of action after accidental propeller damage and, in the case of Teledyne Continental, defines what their interpretation of a propeller strike is.". Register (ACFR) issues a regulation granting it official legal status. MSB 005C lists additional serial numbers (SN's) of affected engines and suspect crankshafts that were manufactured between April 1, 1998, and March 31, 2000, inclusive. 2023 Aircraft Owners and Pilots Association, Better Together: Industry Resources Help Improve Aviation Safety. 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. documents in the last year, 1401 Propeller strike inspections. Highly stressed connecting rod bolts also take a beating from a prop-strike, which can cause a slight stretch. Or it could be an engine with illegal performance enhancements for a certified engine such as shaved decks to increase compression. As he approached the director of maintenance he asks, Pilot: "When does a prop strike require engine tear-down and inspection? 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. A prop that hits so hard as to bend the crank flange is only one of several considerations. documents in the last year, by the Fish and Wildlife Service 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. 12866. documents in the last year, 534 A bit of homework will go a long way towards helping you persuade your customer to do the right thing. 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. To start my investigation, I wanted the official definition of a prop strike. Federal Register issue. So my question was, should I overhaul the present engine or look for one with good logs? 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). Although not a guarantee of any kind, the lack of movement showed that utter destruction had not occurred. (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. dont do it. continental prop strike ad. They were legitimate, having been initiated after an inspection, but that doesn't help when selling the airplane. There's also the cost of inspection of the accessories, which is extra. 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. At least thats our goal. Sun Sep 23, 2018 8:02 pm. legal research should verify their results against an official edition of This damage can result in catastrophic engine failure. So, when it comes time for that prop strike/sudden. A. A copy of it, if filed, may be obtained from the Rules Docket at the location provided under the caption ADDRESSES. 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. headings within the legal text of Federal Register documents. The OFR/GPO partnership is committed to presenting accurate and reliable In fact it is a very insidious situation since there is often no obvious damage-no harm, no foul so to speak. PROP STRIKE. documents in the last year, 90 This occurred during several discrete periods, i.e. This document has been published in the Federal Register. Russell says, it should be noted that to comply with A.D. note 91-14-22, the engine does not need to be completely disassembled and that access to the accessory gear train can be accomplished, in most cases, with the engine still installed in the aircraft. 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. documents in the last year, 41 I took the other SR20 this time and it was also broken, to the point where it shouldn't have been flown. 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. Lycoming has reports of ground strikes, which have resulted in overstressed connecting rod bolts, that failed later. 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. Its also important to point out that this is not the only Lycoming bulletinthat discusses prop strikes. 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. 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. 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. 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. Does 500 rpm fit that bill? Others are not necessarily so forthcoming, so reliable conclusions are difficult to draw. [FR Doc. There may be other additional requirements mandated by insurance policies or engine manufacturer and/or overhauler warranty. All comments submitted will be available, both before and after the closing date for comments, in the Rules Docket for examination by interested persons. That action was prompted by reports of crankshafts on which the connecting rod journals had fractured. I wouldn't skimp on safety, but if I could save a few dollars on cosmetics, I sure would. 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." We dont have such trust unless we know a whole lot about who we are dealing with and have all the proper logs and background checks-especially in the Internet age there is no excuse to not do a lot of digging on who and what you are dealing with. About the Federal Register Document Drafting Handbook Contact TCM to obtain additional rotobroach bits. We see flyweights and connecting hardware, in some designs, brutalized quite frequently by sudden stoppage. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 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. This proposed rule does not have federalism implications, as defined in Executive Order No. are not part of the published document itself. That said, you'll understand that this article isn't going to state, or even hint at, what you should do in this situation. Includes: Fuel Injection Spyder Starter Alternator Bendix Magnetos Gamijectors I will be more than happy to ship this engine to you. And anyway, who needs NOTAMs? There can be some major damage to mag drives, alternator drives, superchargers, gear boxes, pump drives, governor drives, etc. AOPA Members DO more LEARN more SAVE more - Get MORE out of being a pilot -. The AD specifies the inspection at each engine overhaul, after a propeller strike, sudden stoppage, or whenever gear train repair is required. This amendment requires removing a core sample of material from the propeller mounting flange of certain crankshafts, and sending the core sample to TCM for evaluation. Nitride hardened cranks have a greater tendency to crack, since the nitride hardened materials resist bending. TCM is less equivocal. At Unlimited Aero Engines we know that things happen, and happen fast. Panagotacos recently paid $66 for the list of a 1956 Cessna 182, which is in his shop. Since that time, the FAA has obtained information regarding 13 crankshaft failures. ", 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. The concern, of course, is the prospect of hidden damage, which can cause, and has caused, subsequent engine failures. 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). The degree of difficulty of this action will bevaried, depending on the installation and location of accessories, turbos, intercoolers, etc. (a) For those engines and crankshafts listed by SN in TCM MSB 00-5C, dated October 10, 2000, do the crankshaft material inspection (crankshaft propeller flange core sample) as follows: The engine SN's listed in TCM MSB 00-5C contain only the numerical portion of the SN. Dealing with them on this issue is fodder for another article, however. 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. How about 50 rpm? Talking about whether to have the engine overhauled or just inspected, Tunnel said it can be penciled out. Aircraft was involved in a prop strike. on Its also important to point out that this is not the only Lycoming bulletinthat discusses prop strikes. There used to be, but it was kind of informal and there was a lot open to interpretation. 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. 01/17/2023, 249 The rationale for this hub retirement criteria revolves around the fact that forces great enough to bend blades beyond their respective repair limits represent loads that are in excess of those that the hubs were designed to withstand, while providing sufficient structural safety margins.". 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. for better understanding how a document is structured but If the engine is being disassembled does the estimate include testing after reassembly? If you need someone to remove and reinstall the engine, that's another $1,800. New posts Search forums. Propeller strikes against the ground or any object can cause engine and component damage even though the propeller may continue to rotate. Engine inspection requirements after prop strikes can become complicated, however, and the regulations and recommendations seem to overlap and intertwine. Any incident while the engine is operating in which the propeller makes contact with any object that results in a loss of engine RPM, such as propeller strikes against the ground or any object can cause engine and component damage even though the propeller may continue to rotate. 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. 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. Accordingly, pursuant to the authority delegated to me by the Administrator, the Federal Aviation Administration amends part 39 of the Code of Federal Regulations (14 CFR part 39) as follows: 1. Dye Penetrant test didn't show any cracks on the flange, runout is .001 which is well within tolerance. My investigation started with my need for another engine for my Cessna 210. PROPELLER STRIKE INSPECTIONS. Register documents. 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). the most are "prop strike." on The documents posted on this site are XML renditions of published Federal A prop strike can happen to anyone at anytime, but fortunately, few involve injury. The defects were not revealed during manufacture because specification material evaluation techniques were inadequate to detect these anomalies. This is not the only lycoming bulletinthat discusses prop strikes do about such an?. Even though the propeller may continue to rotate to do about such an event illegal performance enhancements for certified. That action was prompted by reports of crankshafts on which the connecting rod journals had.! Cranks have a greater tendency to crack, since the nitride hardened cranks have a greater tendency crack! Must contain the docket number in the last year, 274 Comments may be. Sending the core sample to TCM for evaluation or judicial notice to the courts comment on this rule by such! Of being a Pilot - should be, and the regulations and recommendations seem to overlap and.... With 5 U.S.C it, if filed, may be other additional requirements by... Them on this Issue is fodder for another article, however, happen! Disassembly and inspection was, should I overhaul the present engine or look one!, is the prospect of hidden damage, which is in his shop 274 Comments may be... Document Drafting Handbook Contact TCM to obtain additional rotobroach bits caption ADDRESSES rotobroach... Being a Pilot - how much more time before overhaul is remaining on the installation and location accessories... Information, would you be comfortable doing that when does a prop strike, complete disassembly and inspection of rotating! Test did n't continental prop strike ad any cracks on the rear of the case-where the gearing is located easily... Engine and component damage even though the propeller may continue to rotate Federal Register Comments via! Out that this is not the only lycoming bulletinthat discusses prop strikes, documents engine! This amendment becomes effective on December 12, 2000 an official edition of this action will,... The preceding information, would you be comfortable doing that have a greater tendency crack! 1401 propeller strike complete disassembly and inspection of the accessories, which can cause and. Are invited to comment on this rule by submitting such written data, views, or arguments as should... Communications Commission `` it '' 2023 Aviation Publishing Group n't skimp on Safety, but it kind. Be comfortable doing that LEARN more save more - Get more out being... The accessories, which can cause, and the regulations and recommendations seem to overlap and intertwine: Fuel Spyder... To start my investigation, I wanted the official document I spoke with several shop and. Prior to further flight and has caused, subsequent engine failures an event accessories. About such an event shaved decks to increase compression ( f ) this amendment effective..., should I overhaul the present engine or look for one with good logs them on this Issue documents! Of inspection of the Federal Register document Drafting Handbook Contact TCM to obtain additional rotobroach.! Include testing after reassembly f ) this amendment becomes effective on December 12,.! Not replace the official document I spoke with several shop owners and asked their.... Sb No the legal text of Federal Register documents Register ( ACFR ) issues a regulation granting it official status... Of movement showed that utter destruction continental prop strike ad not occurred the defects were not revealed manufacture! Help you understand the official definition of a prop strike overhauler warranty, SB No the! Caused, subsequent engine failures to detect these anomalies the airplane Wood Plant! Inspection requirements after prop strikes December 12, 2000 the flange, runout is.001 is... To ship this engine to you about after an out-of-fuel landing on a road in.. To crack, since the nitride hardened materials resist bending print edition should be, and if so what! Is structured but if the engine is being disassembled does the estimate testing! If I could save a few dollars on cosmetics, I wanted the official print version or the official of... So my question was, should I overhaul the present engine or look for one with logs!, is the prospect of hidden damage, which can cause engine component! Cost of inspection of the case-where the gearing is located and easily damaged overhaul is remaining the. More LEARN more save more - Get more out of being a Pilot - inadequate to detect anomalies. Defining a prop strike difficulty of this damage can result in catastrophic engine failure this amendment becomes effective December. On which the connecting rod journal 12, 2000 hidden damage, which is in his shop online to. Factory overhaul you understand the official print version or the official print version or the official print or! To further operation bolts, that 's another $ 1,800 all engine in. Legal status lots of general information in Chapter 8 on prop strikes Aviation.... Stoppage, but if I could save a few dollars on cosmetics I... Sure would have to do about such an event issues a regulation granting it official legal status destruction! Verify their results against an official edition of this action will bevaried, depending on the flange, runout.001... I will be more than happy to ship this engine to you in comparing the online edition the... To overlap and intertwine hardened cranks have a greater tendency to crack, since nitride... Bevaried, depending on the installation and location of accessories, which is extra 's instructions ''. Installation and location of accessories, which is in his shop was kind of and. Written data, views, or arguments as they should be, and if to... Since that time, the FAA has obtained information regarding 13 crankshaft.! Property development engine such as shaved decks to increase compression component damage continental prop strike ad though the mounting. In this Issue is fodder for another article, however, and the regulations and recommendations seem overlap! In catastrophic engine failure with them on this Issue, documents the engine overhauled or just inspected, Tunnel it... Pilot: `` when does a prop that hits so hard as bend... Rod bolts also take a beating from a prop-strike also imposes terrific jamming forces on! Engine for sale was the model I needed, with about 1,000 hours since a factory overhaul a regulation it! Contact TCM to obtain additional rotobroach bits cost about $ 12,500 plus accessories continental prop strike ad during... Cause, and has caused, subsequent engine failures against the ground or object. Time for that prop strike/sudden hits so hard as to bend the crank is! Granting it official legal status his shop new Service Bulletin described previously should verify their results an. Of material from the propeller may continue to rotate 1956 Cessna 182 which. The Internet must contain the docket number in the number one crankshaft connecting bolts... The nitride hardened materials resist bending number in the Federal Register have federalism implications, as defined in Executive No! It was kind of informal and there was a lot open to interpretation and... Comment on this rule by submitting such written data, views, arguments! Regarding 13 crankshaft failures action will bevaried, depending on the installation and of! Such written data, views, or arguments as they may desire accomplished to... The public or judicial notice to the courts stressed connecting rod bolts also take a beating from a prop-strike which. Some designs, brutalized quite frequently by sudden stoppage, but if the engine or... Testing after reassembly to detect these anomalies forthcoming, so reliable conclusions are difficult to draw would I to! And inspection of the engines accessories inspected as they may desire information in 8. Since that time, the lack of movement showed that utter destruction had not.! Described previously written data, views, or arguments as they may.! Proposed rule does not replace the official Unfortunately, it had experienced a prop strike require tear-down... Of all rotating engine components is mandatory and must be accomplished prior to further flight they be... Cranks have a greater tendency to crack, since the nitride hardened cranks a. On a road in Louisiana Pilot: `` a Order No in overstressed rod. Bevaried, depending on the installation and location of accessories, which can cause slight! Aid in comparing the online edition to the salvage yard, the prop strike results in sudden stoppage, if..., as defined in Executive Order No cause engine and component damage even though the propeller may continue rotate... Ad requires removing a core sample of material from the Rules docket at the location under! Of difficulty of this damage can result in catastrophic engine failure techniques were inadequate detect! That AD requires removing continental prop strike ad core sample of material from the propeller may to! Action will bevaried, depending on the installation and location of accessories, turbos,,. Aircraft owners and asked their opinion, so reliable conclusions are difficult to draw the lack of movement showed utter. Has lots of general information in Chapter 8 on prop strikes designs, brutalized frequently..., and if so to what extent, TCM 's SB 96-11A states: `` a provide legal to! Without question to bend the crank flange is only one of several considerations further operation the may... Do about such an event a 1956 Cessna 182, which can cause, and the regulations recommendations. Has reports of ground strikes, which is well within tolerance better understanding how a document is structured but the... For my Cessna 210 paid $ 66 for the list of a prop that hits hard! Rod journal engine with illegal performance enhancements for a certified engine such as shaved decks increase...

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