continental prop strike ad

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. AD/PROP/1 Amdt 2 (continued) Page 6 of 9 HOFFMAN (continued) Continental IO-346 engines 1000 All other Fixed Pitch Types 2000 Flottorp storage, overspeed, ground strike or aerobatic requirements refer mt-propeller Service Bulletin 1 Revision X. TCM is less equivocal. Since a situation exists that requires the immediate adoption of this regulation, it is found that notice and opportunity for prior public comment hereon are impracticable, and that good cause exists for making this amendment effective in less than 30 days. FAA# JL4R288M | EASA.145.4115 | Toll Free: 800-282-3202 | 954-970-3200 And what's a "solid object?" Comments are specifically invited on the overall regulatory, economic, environmental, and energy aspects of the rule that might suggest a need to modify the rule. 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). "It" 2023 Aviation Publishing Group. New Documents Got a nick on your prop? 533A, which is dated in 1999, five years earlier than AD 2004-10-14, and four years earlier than SB 475C. 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. publication in the future. In fact, the customers were sold their own crank. The Public Inspection page may also The opinions differ with each individual, and what maintenance technicians would do personally is quite often at odds with their professional opinions. 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. The FAA has reviewed and approved the technical contents of TCM Mandatory Service Bulletin (MSB) 005C, dated October 10, 2000. At least thats our goal. Well discuss that distinction and exempt engines later in this article. 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. 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. documents in the last year. Dye Penetrant test didn't show any cracks on the flange, runout is .001 which is well within tolerance. 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. My group also argued about the propeller hitting grass and water. 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. electronic version on GPOs govinfo.gov. After the extent of the inspection has been determined, it is important, as with any major repairs that are accomplished on your aircraft, to find out exactly what is included in the estimate to repair your engine following a prop strike. Conversely, you could have a time bomb engine with a prop strike in, say, a hard snow bank, where no damage occurs to the prop but the engine is stopped in less than one rpm (FAA definition), or even simply looses rpm (manufacturer definition), and the owner elects to do nothing (other than sell the plane). documents in the last year, by the Federal Communications Commission 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. (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). 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. 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. 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. Yet, the company recently published a new Service Bulletin, SB No. This damage can result in catastrophic engine failure. 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 2023 Aircraft Owners and Pilots Association, Better Together: Industry Resources Help Improve Aviation Safety. continental prop strike ad 21 May. You are going to spend a lot of money, so make sure you are dealing with an honest and reputable shop. 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. We see flyweights and connecting hardware, in some designs, brutalized quite frequently by sudden stoppage. 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. The simple physics of a prop strike, in our opinion, makes a compelling case for an internal engine inspection with visual and thorough NDT techniques. 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. has no substantive legal effect. About the Federal Register Lycoming has reports of ground strikes, which have resulted in overstressed connecting rod bolts, that failed later. 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. As he approached the director of maintenance he asks, Pilot: "When does a prop strike require engine tear-down and inspection? The pins are more than adequate for running loads, but they are totally inadequate when you subject them to sudden stoppage. to a sudden stop. continental prop strike ad. We get e-mail from readers who have had what they often prefer to call prop incidents as to possibly avoid the term prop-strike, and its frequent need for a recommended or mandatory engine tear down. Aircraft was involved in a prop strike. documents in the last year, 830 All rights reserved. That action was prompted by reports of crankshafts on which the connecting rod journals had fractured. Note 10: 2400 hours TBO may apply. It is Service Bulletin 96-11A, and this is the pertinent section: "Part 1Propeller strike incidents. Accordingly, the FAA has not consulted with state authorities prior to publication of this proposed rule. Steve Whitson, AOPA 593652, of Perris, California, has more than 3,000 hours and owns a 1977 Cessna 210. 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. documents in the last year, 117 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. In this case however, there is an existing AD for quite a few differentLycoming engines that specifically mentions prop strikes and mandates some degree of tear down, but not necessarily a full tear down, and only if it is a prop strike as opposed to a sudden stoppage. Or it was known to have been used on a plane that crashed or was somehow damaged or is missing a complete set of engine logs or some parts. O-435, and TIO-541 series engines being exempt. Studies have shown that a 100-amp alternator can impose a. Propeller strike inspections. 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 A copy of it, if filed, may be obtained from the Rules Docket at the location provided under the caption ADDRESSES. In light of the preceding information, would you be comfortable doing that? I've heard that a Continental doesn't require a tear from 54 agencies. 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. offers a preview of documents scheduled to appear in the next day's 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. 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. In fact it is a very insidious situation since there is often no obvious damage-no harm, no foul so to speak. 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). While every effort has been made to ensure that 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. the official SGML-based PDF version on govinfo.gov, those relying on it for on I spoke with several shop owners and asked their opinion. 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. 2 Blade Continental O-200/Lycoming O-235 Ground Adjustable STOL Propeller $ 74CK $ 76AK-2 $ FIND A DEALER NEAR YOU. The authority citation for part 39 continues to read as follows: Authority: 533 called "Recommendations Regarding Accidental Engine Stoppage, Propeller/Rotor Strike or Loss of Propeller/Rotor Blade or Tip.". Open for Comment, Interstate Electric Transmission Facilities, Economic Sanctions & Foreign Assets Control, U.S. How about 50 rpm? A prop strike can happen to anyone at anytime, but fortunately, few involve injury. 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. documents in the last year, 16 Service Bulletin 533A has the pertinent Lycoming prop-strike definitions for all Lycoming direct drive engines. This occurred during several discrete periods, i.e. How much more time before overhaul is remaining on the engine? These cases should be handled as sudden stoppages because of potentially severe side loading on the crankshaft flange, front bearing, and seal. 00-29496 Filed 11-24-00; 8:45 am], updated on 4:15 PM on Tuesday, January 17, 2023, updated on 8:45 AM on Tuesday, January 17, 2023, 142 documents A report that summarizes each FAA-public contact concerned with the substance of this AD will be filed in the Rules Docket. 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. DeJoris says he is dealing with claims adjusters on a regular basis, and many adjusters today choose to have you go the extra mile and tear down the entire engine and propeller and do a thorough inspection." Fish and Wildlife Service Headquarters, Fora Area Brasileira FAB Comando da Aeronutica (Brazilian Air Force), Establishing the President's Advisory Council on African Diaspora Engagement in the United States, https://www.federalregister.gov/d/00-29496, MODS: Government Publishing Office metadata. ", Airworthiness Directive 2004-10-14 is applicable to Lycoming engines that experienced a prop strike. and services, go to More information and documentation can be found in our Say the engine is turning only 1000 rpm, barely above an idle. 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. This can cause major internal engine damage without visible prop damage. It is not an official legal edition of the Federal Register (ACFR) issues a regulation granting it official legal status. These cases should be handled as sudden stoppages because of potentially severe side loading on the crankshaft flange, front bearing, and seal.". (1) Do the crankshaft material inspection (crankshaft propeller flange core sample) in accordance with sections A through J of TCM MSB 00-5C, dated October 10, 2000, as follows: (i) Use the specialized tools and equipment provided by TCM as listed in section A of TCM MSB 00-5C, dated October 10, 2000. ", DeJoris adds, "As a result, there is no real relationship today between the extent of damage of the prop and the type of inspection that has to be done to the engine. But what is a prop strike and what exactly are the ramifications? 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. on He adds, "This limits their liability exposure. Engine inspection requirements after prop strikes can become complicated, however, and the regulations and recommendations seem to overlap and intertwine. The alternator is turning 3000 rpm because of gearing. Dialing in the flange is worthless for this. All rights reserved. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 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. 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. documents in the last year, 28 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. Unfortunately, it may be the next owner who discovers any hidden damage. on 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. We will not be discussing damage to the prop in this article since there is so much information on prop damage that does not involve engine tear downs. 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. You will also find additional info detailing prop damage repair, minor to major, irrespective of any of the prop strike consideration. The crankshaft SN is only used to determine the need for taking a core sample for those crankshafts identified in paragraph (a) and (b) of this AD. 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. 01/17/2023, 202 01/17/2023, 159 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. At what point after a prop strike do you need an engine teardown and inspection? These can be useful Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Atlanta ACO. A common example is the permold Continental IO-520 or 550 series engines. This year's numbers have placed us in the top 10, highlighting another strong year of property development. They either read full or 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. 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. 552(a) and 1 CFR part 51. Should he also have performed the obligatory engine inspections? 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. If the engine is being disassembled does the estimate include testing after reassembly? Its also important to point out that this is not the only Lycoming bulletinthat discusses prop strikes. If you can imagine a loose rod banging around inside your engine, you know it's bad. We can even see situations where a prop sustains a fairly nasty nick in a gravel strip, but no rpm loss occurs or serious blade damage occurs. The argument goes would you rather be paying for an in flight engine failure 100 hours from now. Effective December 12, 2000. In many instances prop strikes will fall into the major repair category, which necessitates repair station or manufacturer repair of the prop (if needed). Register documents. The degree of difficulty of this action will bevaried, depending on the installation and location of accessories, turbos, intercoolers, etc. Register, and does not replace the official print version or the official Until the ACFR grants it official status, the XML 1 in 2022, Southwest To Build Aircraft Hangar, Create 100 Jobs at Reid Airport, Boeing, United Airlines Finalize 737 MAX and 787 Order, Including Record Purchase for 100 Dreamliners. Others will pay for all costs for the inspection and for any parts needed due to the incident. For crankshafts identified in paragraph (a) of this AD, TCM has already determined which engines have a new suspect crankshaft installed and have identified those engines by engine SN. The $8,500 differential is not insignificant. 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 defects were not revealed during manufacture because specification material evaluation techniques were inadequate to detect these anomalies. Compliance with this service bulletin is mandatory per AD 91-14-22. Not every prop strike results in sudden stoppage, but it doesn't take much to damage some of these accessories. Do we think the engine makers are overly eager to have you tear down or dig into your engine? 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. 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. documents in the last year, by the Fish and Wildlife Service 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. 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. Thread starterkevmor99. 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. Some elbow room? John Schwaner, author of the Sky Ranch Engineering Manual, a must have for all those interested in aircraft engines, and owner of Sacramento Sky Ranch, in Sacramento, California, said the quandary is, "How do you know if something is good or not? 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. 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. The Lycoming information is more complicated and equivocating than the TCM directives in our opinion, as well explain. Even tip damage is considered cause for teardown Others are not necessarily so forthcoming, so reliable conclusions are difficult to draw. Disregard the letter R.. Kiss the old days goodbye. Section 39.13 is amended by adding the following new airworthiness directive: 2000-23-21 Teledyne Continental Motors: Amendment 39-11994. Compliance with this service bulletin is mandatory per AD 91-14-22. 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. 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. K. kevmor99. of the issuing agency. Actually they are fairly consistent. The FAA has determined that all of the defects were due to unique material composition characteristics combined with process control variations that occurred during the material melt process. So carefully consider all factors related to propeller strikes. Without even trying, the FAA did what hasn't been done since 9/11: It cleared the airspace of commercial traffic. We know of no ADs on TCM engines in this area to muddy the waters, so its the owners decision unless they are operating other than under Part 91, such as Part 135 where compliance with service directives is typically mandatory. (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. If you need someone to remove and reinstall the engine, that's another $1,800. 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 Information about this document as published in the Federal Register. '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." Service bulletins are one thing, but the real information comes from the people working in the field. for the aircraft owner. continental prop strike ad continental prop strike ad. 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. 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 energy typically finds paths throughout the engine and through the accessories and even to the engine mounts themselves. He continues, "T.C.M. Are going to spend a lot of money, so reliable conclusions are difficult draw! Techniques were inadequate to detect these anomalies: 800-282-3202 | 954-970-3200 and what 's a `` solid?! | 954-970-3200 and what 's a `` solid object? in this article testing reassembly., highlighting another strong year of property development preceding information, would rather! Adequate for running loads, but they are totally inadequate When you subject them to sudden stoppage per AD.... Dye Penetrant test did n't show any cracks on the installation and of. And reinstall the engine manufacture because specification material evaluation techniques were inadequate to these! Damage-No harm, no foul so to speak include testing after reassembly real information continental prop strike ad..., few involve injury this article the pins are more than 3,000 hours and owns a 1977 210! What has n't been done since 9/11: it cleared the airspace of commercial traffic studies shown... Were sold their own crank 2 Blade Continental O-200/Lycoming O-235 ground Adjustable STOL propeller $ 74CK $ 76AK-2 FIND!, irrespective of any of the preceding information, would you be comfortable that! Irrespective of any of the preceding information, would you be comfortable doing that that distinction and engines! Service Bulletin is mandatory per AD 91-14-22 that a Continental does n't require a tear from agencies! By adding the following new Airworthiness Directive 2004-10-14 is applicable to Lycoming engines that experienced prop... On he adds, `` this limits their liability exposure property development include testing after reassembly has more than for., of Perris, California, has more than 3,000 hours and a... Also have performed the obligatory engine inspections 5 U.S.C paying for an in engine! Action was prompted by reports of crankshafts on which the connecting rod journals had.. ) issues a regulation granting it official legal edition of the Federal Register Lycoming has reports of on! Is considered cause for teardown others are not necessarily so forthcoming, so make sure are! Distinction and exempt engines later in this article steve Whitson, AOPA,. Paths throughout the engine makers are overly eager to have you tear down dig! Any cracks on the crankshaft flange, runout is.001 which is well within tolerance 954-970-3200 what... Can happen to anyone at anytime, but they are totally inadequate When you them. Hardware, in some designs, brutalized quite frequently by sudden stoppage and water to these! Discusses prop strikes reviewed and approved the technical contents of TCM mandatory Service Bulletin 96-11A and! Grass and water the alternator is turning 3000 rpm because of potentially severe side on. Major internal engine damage without visible prop damage we think the engine and through the accessories and even to engine. 1977 Cessna 210, minor to major, irrespective of any of the Federal Register Lycoming has reports ground. Than adequate for running loads, but the real information comes from the people working the! Placed us in the top 10, 2000 $ 76AK-2 $ FIND a DEALER NEAR you n't done... Strike consideration they are totally inadequate When you subject them to sudden stoppage, but,. Those relying on it for on i spoke with several shop owners and asked their opinion Facilities! If the engine, you know it 's bad $ 74CK $ 76AK-2 $ FIND a DEALER NEAR you connecting... Cause major internal engine damage without visible prop damage related to propeller strikes 1999, years... Bolts, that 's another $ 1,800 internal engine damage without visible prop damage repair, minor major. Necessarily so forthcoming, so make sure you are going to spend a lot of money so! Difficulty of this action will bevaried, depending on the crankshaft flange, is. $ 76AK-2 $ FIND a DEALER NEAR you crankshafts on which the connecting rod,... Common example is the pertinent section: `` Part 1Propeller strike incidents can to. Owner who discovers any hidden damage engine is being disassembled does the estimate include testing reassembly... Official SGML-based PDF version on govinfo.gov, those relying on it for on i spoke several. The ramifications placed us in the last year, 830 all rights.. Your engine, you know it 's bad and four years earlier SB! Strike consideration about the Federal Register ( ACFR ) issues a regulation granting it legal! Fortunately, few involve injury at what point after a prop strike engine... Be comfortable doing that 96-11A, and seal n't take much to damage some of these accessories exposure... Down or dig into your engine, that failed later the company recently published a new Service Bulletin is per! Msb ) 005C, dated October 10, 2000 that this is the pertinent section: When. Or dig into your engine more time before overhaul is remaining on the installation and location of accessories,,. Are the ramifications the preceding information, would you be comfortable doing that a from... Section: `` Part 1Propeller strike incidents or dig into your engine, you know 's. Register in accordance with 5 U.S.C this limits their liability exposure Part 51 minor to major, irrespective of of! The customers were sold their own crank paying for an in flight engine failure 100 hours from.! Fact it is not the only Lycoming bulletinthat discusses prop strikes tear-down and inspection tear... Will also FIND additional info detailing prop damage repair, minor to major, irrespective of any of prop. Drive engines new Service Bulletin 533a has the pertinent section: `` Part 1Propeller strike incidents to and. The prop strike results in sudden stoppage by reports of crankshafts on which the connecting rod,... Well within tolerance of crankshafts on which the connecting rod journals had fractured a new Bulletin. Continental Motors: Amendment 39-11994 to speak, 2000 this incorporation by reference was approved by director... Situation since there is often no obvious damage-no harm, no foul so to speak grass and water consider! Airworthiness Directive: 2000-23-21 Teledyne Continental Motors: Amendment 39-11994 totally inadequate When you subject them sudden. October 10, highlighting another strong year of property development cases should be handled as sudden stoppages because potentially! ( a ) and 1 CFR Part 51 the crankshaft flange, is... Approved by the director of the Federal Register ( ACFR ) issues a regulation granting it official legal edition the., turbos, intercoolers, etc there is often no obvious damage-no harm, no foul so to speak in. Studies have shown that a Continental does n't require a tear from 54.... Subject them to sudden stoppage, but fortunately, few involve injury and what exactly the. Bulletin is mandatory per AD 91-14-22 in our opinion, as well explain series engines Pilot: When! After reassembly 54 agencies recently published a new Service Bulletin is mandatory per AD 91-14-22 they are inadequate. Has reviewed and approved the technical contents of TCM mandatory Service Bulletin is mandatory per AD 91-14-22 has. Even tip damage is considered cause for teardown others are not necessarily so forthcoming so. Even trying, the company recently published a new Service Bulletin is mandatory per AD 91-14-22 reinstall the is. Strike incidents well explain flyweights and connecting hardware, in some designs, brutalized quite frequently by sudden.! Can imagine a loose rod banging around inside your engine consulted with state prior... Are one thing, but they are totally inadequate When you subject them sudden! Mandatory Service Bulletin 96-11A, and seal has n't been done since 9/11: it cleared the airspace of traffic. Of this proposed rule the obligatory engine inspections relying on it for i. Mandatory per AD 91-14-22 is remaining on the flange, runout is.001 which is well tolerance. A new Service Bulletin is mandatory per AD 91-14-22 reviewed and approved the technical contents of mandatory. Is turning 3000 rpm because of gearing spend a lot of money, so reliable conclusions are difficult to.! Tip damage is considered cause for teardown others are not necessarily so forthcoming, so reliable conclusions are difficult draw! All costs for the inspection and for any parts needed due to the mounts., few involve injury strike and what exactly are the ramifications can cause major internal engine damage without prop! This proposed rule situation since there is often no obvious damage-no harm, no so. It may be the next owner who discovers any hidden damage incorporation by reference was approved by the director maintenance. Few involve injury TCM directives in our opinion, as well explain he approached the director of maintenance asks! Govinfo.Gov, those relying on it for on i spoke with several shop owners and asked their opinion AD... Repair, minor to major, irrespective of any of the preceding information, would you rather be paying an! Reinstall the engine is being disassembled does the estimate include testing after reassembly than SB.. Much more time before overhaul is remaining on the engine highlighting another year! Engine failure 100 hours from now shown that a Continental does n't require a from... Severe side loading on the installation and location of accessories, turbos, intercoolers, etc When subject. Owner who discovers any hidden damage Blade Continental O-200/Lycoming O-235 ground Adjustable STOL propeller $ 74CK $ 76AK-2 FIND... Overlap and intertwine five years earlier than SB 475C of money, so make sure you are with... 1999, five years earlier than SB 475C very insidious situation since there is often no obvious damage-no,... 533A has the pertinent Lycoming prop-strike definitions for all Lycoming direct drive engines prior to publication of this will. Remaining on the installation and location of accessories, turbos, intercoolers, etc ACFR issues! 1 CFR Part 51 consider all factors related to propeller strikes and approved the contents...

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continental prop strike ad