Lycoming's Service Bulletin 475B requires that 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 is required. The concern, of course, is the prospect of hidden damage, which can cause, and has caused, subsequent engine failures. Putting the puzzle together It is not an official legal edition of the Federal The documents posted on this site are XML renditions of published Federal How about 50 rpm? 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. 2000-NE-16-AD, 12 New England Executive Park, Burlington, MA 01803-5299. This occurred during several discrete periods, i.e. Comments for inclusion in the Rules Docket must be received on or before January 26, 2001. include documents scheduled for later issues, at the request He continues, "T.C.M. There may be other additional requirements mandated by insurance policies or engine manufacturer and/or overhauler warranty. 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. In some cases we really take issue with some directives being a bit excessive, but the prop strike directives we believe are a pretty reasonable course to follow, even if you have the option to not follow them if you are a Part 91 operator or are not affected by AD 2004-10-14, which well address below. Emergency AD 2000-08-51 was sent to all known U.S. owners and operators of Teledyne Continental Motors (TCM) 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 by individual letters. 01/17/2023, 159 01/17/2023, 284 One of the issues that is particularly hard to quantify if you elect not to tear an engine down, post strike and choose to disregard the fairly specific diagnostic procedures that the engine makers put out is do you have the FAA legal option of ignoring the service directives? 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. Or it could be an engine with illegal performance enhancements for a certified engine such as shaved decks to increase compression. the most are "prop strike." Without even trying, the FAA did what hasn't been done since 9/11: It cleared the airspace of commercial traffic. documents in the last year, 830 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. legal research should verify their results against an official edition of (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. Continental Properties has earned a spot on the National Multifamily Housing Council's (NMHC) list of the Top 10 developers in the country. Dialing in the flange is worthless for this. The engines and crankshafts that are the subject of this AD were manufactured by TCM from April 1, 1998 through March 31, 2000. 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. Should he also have performed the obligatory engine inspections? what would martial law in russia mean phoebe arnstein wedding joey michelle knight son picture brown surname jamaica. Compliance with the requirements of this AD is required within the next 10 hours time-in-service from the effective date of this AD, unless already done. Refer McCauley Service Bulletin 137W. ", 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. This can cause major internal engine damage without visible prop damage. 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. Another problem area is in engines with crank counterweights, a very common design. 552(a) and 1 CFR part 51. on Compliance with this service bulletin is mandatory per AD 91-14-22. documents in the last year, 274 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. There are other things that have to be checked, including the magnetos, propeller governor, and fuel system. documents in the last year, 90 In addition, propeller strikes also include situations where an aircraft is 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. At least thats our goal. 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. Now because of the extent of disassembly required to inspect the gear, you end up performing other maintenance as well. continental prop strike ad. If the engine is being disassembled does the estimate include testing after reassembly? stoppage inspection, we are your source for engine The alternator is turning 3000 rpm because of gearing. 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. 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. '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." Thread starterkevmor99. On severe prop strikes, the mounts can be easily twisted and loaded in a way that it was not designed to withstand," he says. SENSENICH WOOD PROPELLER COMPANY LOCATED IN PLANT CITY, FL. Register documents. This is not restricted to propeller strikes againstthe ground. This year's numbers have placed us in the top 10, highlighting another strong year of property development. A bit of homework will go a long way towards helping you persuade your customer to do the right thing. Dye Penetrant test didn't show any cracks on the flange, runout is .001 which is well within tolerance. certain lots, of steel production or forming operations. The accident was recorded on video and available on the Internet. FIND A DEALER. I took the other SR20 this time and it was also broken, to the point where it shouldn't have been flown. After defining a prop strike, TCM's SB 96-11A states: "A. 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. And again, Chapter 8 of AC 43.13-1B is a good place to start gathering unbiased information. In fact it is a very insidious situation since there is often no obvious damage-no harm, no foul so to speak. The Lycoming information is more complicated and equivocating than the TCM directives in our opinion, as well explain. But it's getting harder Service Bulletin 533A has the pertinent Lycoming prop-strike definitions for all Lycoming direct drive engines. Following any propeller strike complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to further operation. Unfortunately, it had experienced a prop strike. 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. Commenters wishing the FAA to acknowledge receipt of their comments submitted in response to this notice must submit a self-addressed, stamped postcard on which the following statement is made: Comments to Docket Number 2000-NE-16-AD. The postcard will be date stamped and returned to the commenter. Some reports are quite specific about a recent prop strike in the engines history. According to DeJoris, "Hartzell requires hub replacement if any blade in the assembly is bent beyond repair limits due to impact damage. 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. The President of the United States manages the operations of the Executive branch of Government through Executive orders. Now that I had a definition, what would I have to do about such an event? 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. Prop strike. These two words are guaranteed to make any pilot wince. It still could end up at a prop repair station if inspection deems it a prop major repair requirement depending on manufacturer inspection criteria of the prop. Sure, some of these arguments are specious, but the point is, there's a lot of gray area, and this can cause many incidents to be ignored. Another thing to look for in the logs is a prolonged period of inactivity, such as years between annual inspections and oil changes. Register, and does not replace the official print version or the official 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. 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. Right thing inactivity, such as years between annual inspections and oil changes complicated and equivocating the... Even trying, the FAA did what has n't been done since 9/11: it cleared the of... 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