But if there's 1,000 hours or more left on the engine, you're probably better off with just an inspection. This year's numbers have placed us in the top 10, highlighting another strong year of property development. Talking about whether to have the engine overhauled or just inspected, Tunnel said it can be penciled out. 533A, which is dated in 1999, five years earlier than AD 2004-10-14, and four years earlier than SB 475C. Comments for inclusion in the Rules Docket must be received on or before January 26, 2001. This proposed rule does not have federalism implications, as defined in Executive Order No. Propeller strikes against the ground or any object can cause engine and component damage even though the propeller may continue to rotate. 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. Although not a guarantee of any kind, the lack of movement showed that utter destruction had not occurred. Prop strike on Continental. I bought the engine and started my quest to determine what I absolutely had to do to get the airplane airworthy. 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. For complete information about, and access to, our official publications Lycoming, in their prop-strike Service Bulletin 533A, takes the approach that the safest procedure is to take the engine apart for inspection following any incident involving propeller blade damage. The OFR/GPO partnership is committed to presenting accurate and reliable 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. TCM's SB 97-6 specifies the mandatory items that must be replaced when the engine is torn down. They either read full or The thought of the damage and cost involved makes all of us shudder. 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 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. He adds, "This limits their liability exposure. According to DeJoris, "Hartzell requires hub replacement if any blade in the assembly is bent beyond repair limits due to impact damage. The actions are required to be accomplished in accordance with the service bulletin described previously. Some geared alternators shafts use gears that are designed to slip on overloads, but older versions of this alternator gear do not have this design, and the gear shear design is for an alternator failure not a crank stoppage. Compliance with this service bulletin is mandatory per AD 91-14-22. 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. 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. 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. ", 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. AC 43.13-1B has lots of general information in Chapter 8 on prop strikes. K. kevmor99. Inspect all engine driven accessories in accordance with the manufacturers maintenance instructions. Engine inspection requirements after prop strikes can become complicated, however, and the regulations and recommendations seem to overlap and intertwine. O-435, and TIO-541 series engines being exempt. 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. But what is a prop strike and what exactly are the ramifications? rendition of the daily Federal Register on FederalRegister.gov does not After defining a prop strike, TCM's SB 96-11A states: "A. Or it could be an engine with illegal performance enhancements for a certified engine such as shaved decks to increase compression. 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. AC 43.13-1B has a great deal to say about what should be done in the manner of inspections and actions, and all the statements are preceded by the word must such as following the manufacturer directives as the priority action, with emphasis on the importance of a teardown when the event meets the criteria. 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. 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 continental prop strike ad. 01/17/2023, 823 On numerous occasions, Textron Lycoming has been consulted about recommendations on whether to continue using an aircraft engine that has been involved (2) Any incident during engine operation in which the propeller impacts a solid object that causes a Schwaner made the point that more than a few people have been told their engine's crank is bad, but it just so happens that the shop has the one you need in stock. All communications received on or before the closing date for comments will be considered, and this rule may be amended in light of the comments received. 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 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. A bit of homework will go a long way towards helping you persuade your customer to do the right thing. 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 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. documents in the last year, 1487 (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. However the dates that the engines and crankshafts were delivered may not coincide with their dates of manufacture. Lycoming has reports of ground strikes, which have resulted in overstressed connecting rod bolts, that failed later. 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." Others will pay for all costs for the inspection and for any parts needed due to the incident. Information about this document as published in the Federal Register. 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. Not every prop strike results in sudden stoppage, but it doesn't take much to damage some of these accessories. documents in the last year, 675 He continues, "T.C.M. These markup elements allow the user to see how the document follows the (2) Any incident during engine operation in which the propeller impacts a solid object that causes a drop in revolutions per minute (RPM) and also requires structural repair of the propeller (incidents requiring only paint touch-up are not included). Another problem area is in engines with crank counterweights, a very common design. The authority citation for part 39 continues to read as follows: Authority: 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. for better understanding how a document is structured but documents in the last year, 973 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. You could identify its sound with your eyes closed. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); WORLD'S PREMIER INDEPENDENT AVIATION NEWS RESOURCE. For Interested persons are invited to comment on this rule by submitting such written data, views, or arguments as they may desire. on These cases should be handled as sudden stoppages because of potentially severe side loading on the crankshaft flange, front bearing, and seal.". Airmark Overhaul, Inc. 6001 NW 29th Avenue Fort Lauderdale, FL 33309. 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. Some reports are quite specific about a recent prop strike in the engines history. Prop strike on Continental. These counterweights move on relatively soft bushings. 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. The degree of difficulty of this action will bevaried, depending on the installation and location of accessories, turbos, intercoolers, etc. Effective December 12, 2000. This document has been published in the Federal Register. Are the minimum legal requirements being met? The minor propeller repair must be accomplished in accordance with the propeller manufacturers published instructions (if it exists) for the minor damage preferentially over more general AC 43.13-1B with the exceptions we noted earlier). 106(g), 40113, 44701. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. So, when it comes time for that prop strike/sudden. All crankshafts that are found to be unserviceable must be replaced with a serviceable crankshaft prior to further flight. offers a preview of documents scheduled to appear in the next day's Are any of the engines accessories inspected as they should be, and if so to what extent? 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." Studies have shown that a 100-amp alternator can impose a. Secure the airplane and figure that it will be out of commission for a few months. Dialing in the flange is worthless for this. corresponding official PDF file on govinfo.gov. I took the other SR20 this time and it was also broken, to the point where it shouldn't have been flown. 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. Mahlon Russell, production manager for Mattituck Aviation Corporation, an engine overhauler in Mattituck, NY, says, "The only pertinent FAA definition that I have been able to find for sudden stoppage' is in Advisory Circular 43.13-1A. Basically the fuel gauges in the center console are shorting out. These are the requirements as we see them. 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 decision was made for me by an advertisement in Trade-A-Plane. Posted at 11:12h in don franklin oil change somerset ky by royal This article originally appeared in the December 2012 issue of Light Plane Maintenance. 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. documents in the last year, 84 on FederalRegister.gov '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." Per the Lycoming website it is still an active bulletin, which we quote in part as follows: On numerous occasions Textron Lycoming has been consulted about recommendations on whether to continue using an aircraft engine that has been involved in the separation of the propeller/rotor blade from the hub, the loss of a propeller/rotor blade tip or sudden stoppage following accidental propeller/rotor damage (such as propeller/rotor strike). Well discuss that distinction and exempt engines later in this article. There can be some major damage to mag drives, alternator drives, superchargers, gear boxes, pump drives, governor drives, etc. SUMMARY: The FAA is adopting a new airworthiness directive (AD) that supersedes an existing AD, for Lycoming Engines (formerly Textron Lycoming), direct-drive This damage can result in catastrophic engine failure. This could indicate a gear-up landing, or other source of damage that took time to fix. 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. 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 following was overheard recently at a maintenance facility after a very irritable looking pilot walked in with a look of embarrassment on his face. Highly stressed connecting rod bolts also take a beating from a prop-strike, which can cause a slight stretch. documents in the last year, 876 TCM is less equivocal. 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). What you see in the pictures is what you are getting. 2023 Endeavor Business Media, LLC. "The result is that those flyweights that are hanging on by 1/8-inch pins can easily bend, twist, or damage those pins. So my question was, should I overhaul the present engine or look for one with good logs? Document Drafting Handbook Continental Properties has earned a spot on the National Multifamily Housing Council's (NMHC) list of the Top 10 developers in the country. Prior to any ground operation of the engine assure that the propeller flange and the crankshaft flange area are free of any crack indications in addition to the engine component inspection. 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. Compliance with this service bulletin is mandatory per AD 91-14-22. The AD specifies the inspection at each engine overhaul, after a propeller strike, sudden stoppage, or whenever gear train repair is required. Lycoming's new SB seems to generalize the term propeller strike and sudden stoppage to be quite inclusive. include documents scheduled for later issues, at the request 12866. 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. Refer McCauley Service Bulletin 137W. Without even trying, the FAA did what hasn't been done since 9/11: It cleared the airspace of commercial traffic. More information and documentation can be found in our The bulletin reads as follows: I spoke with several shop owners and asked their opinion. S/N: 217920-73J Contact Sales Staff - TEXAS AIR SALVAGE, - located Bloomburg, TX 75556 United States Telephone: 9032557878 Posted January 9, 2023 Show all Ads posted by this Advertiser Recommend This Ad to a Friend Actually they are fairly consistent. As he approached the director of maintenance he asks, Pilot: "When does a prop strike require engine tear-down and inspection? Unfortunately, it had experienced a prop strike. Another thing to look for in the logs is a prolonged period of inactivity, such as years between annual inspections and oil changes. 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. karen rietz baldwin; hidden valley high 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. what would martial law in russia mean phoebe arnstein wedding joey michelle knight son picture brown surname jamaica. They were legitimate, having been initiated after an inspection, but that doesn't help when selling the airplane. 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. 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