continental prop strike ad

Phone: (813) 752-3711 Sep 28, 2016. This is a minor or major prop repair issue, but not a potential engine tear down issue. Basically anything that moves is subject to visual and other forms of nondestructive testing. Per the Lycoming website it is still an active bulletin, which we quote in part as follows: (It has all the same definitions found in AD 2004-10-14 that we printed in italics but has additional information): FAA Partners With Korea On Advanced Air Mobility, Guest Blog: Why Aircraft Engines Should Be Hard To Start, Southwest: The Ghost Of Jack Welch Part II, And Now, A ChatBot For All Your Aviation Questions, Best Of The Web: How The Rolls-Royce Merlin Became A World, Best Of The Web: Why Wingsuits Are Flight As Pure As, General Aviation Accident Bulletin, January 16, 2023, Top Letters And Comments, January 13, 2023, National Museum Of The U.S. Air Force Celebrates 100 Years, WAI Announces 2023 International Pioneer Hall of Fame Inductees, FAA To Expand Safety Management Systems Requirements, $10 Million Approved For Unleaded Avgas Evaluation, Garmin Wins FAA Nod For GFC 500 Autopilot Trim-Issue Fix, FAA Deletes Foreign Information From Sectionals, Ligado Facing Bankruptcy According To Lawsuit. [FR Doc. Secure the airplane and figure that it will be out of commission for a few months. 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. Other Lycoming literature mentions the importance to check the accessories as does TCM. So my question was, should I overhaul the present engine or look for one with good logs? 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. I bought the engine and started my quest to determine what I absolutely had to do to get the airplane airworthy. Unfortunately, it had experienced a prop strike. My investigation started with my need for another engine for my Cessna 210. 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. dont do it. To be undiplomatic, dialing in a crank after a prop strike or sudden stoppage as has been defined by both the manufacturers and the FAA is essentially a fools errand-at least as possible decision making criteria on the serviceability of the crank. Thread starterkevmor99. 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. This may seem to contradict itself since sudden stoppage is mentioned earlier in the AD in the prop strike-definitions section, but thats the way it is written with an orientation to certain types of direct drive Lycoming engines, with only Lycoming O-145, O-320H, O-360E, LO-360E, LTO-360E,O-435, and TIO-541 series engines being exempt. There are other things that have to be checked, including the magnetos, propeller governor, and fuel system. 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. If you can imagine a loose rod banging around inside your engine, you know it's bad. ", Airworthiness Directive 2004-10-14 is applicable to Lycoming engines that experienced a prop strike. As he approached the director of maintenance he asks, Pilot: "When does a prop strike require engine tear-down and inspection? Below are three important links from the FAA, Lycoming, and Teledyne Continental regarding the definition of a Prop Strike and sudden stoppage. In another incident a prop hit a small rock, which had been dislodged and thrown back by a larger aircraft. Until the ACFR grants it official status, the XML To start my investigation, I wanted the official definition of a prop strike. Click here for the Diesel Engines service bulletins. For 600-ft lb load on the crank gear on a sudden stop from 1000 engine rpm. It also does not equivocate to any degree on an engine tear down being the mandatory procedure, which is described in the bulletin. 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. 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. Sensenich Wood Propeller Co. 2008 Wood Court Plant City, FL 33563. on This is not restricted to propeller strikes againstthe ground. The FAA has reviewed and approved the technical contents of TCM Mandatory Service Bulletin (MSB) 005C, dated October 10, 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). documents in the last year, 274 106(g), 40113, 44701. At Unlimited Aero Engines we know that things happen, and happen fast. the Federal Register. Service Bulletin 533A has the pertinent Lycoming prop-strike definitions for all Lycoming direct drive engines. Prop strike on Continental. This site displays a prototype of a Web 2.0 version of the daily Lycoming also has a short, two-page separate, specific prop-strike bulletin, SB. They were legitimate, having been initiated after an inspection, but that doesn't help when selling the airplane. On November 24, 1999, the FAA was notified of a crankshaft failure on a TCM engine. According to the salvage yard, the prop strike came about after an out-of-fuel landing on a road in Louisiana. 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. 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. Everyone was happy and the prices were right. 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. To comply with AD 2004-10-14, if it applies to your engine, the engine does not need to be completely disassembled and access to the accessory gear train can be accomplished, in most cases, with the engine still installed in the aircraft. This amendment supersedes emergency airworthiness directive (AD) 2000-08-51. 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. documents in the last year, by the Transportation Security Administration documents in the last year, 480 stoppage inspection, we are your source for engine TCM has informed the FAA that it intends to maintain a 24 to 48 hour turn-around time for notification of the crankshaft airworthiness. Use the PDF linked in the document sidebar for the official electronic format. Lycoming makes the point that an overstressed crankshaft gear dowel pin can ultimately shear, causing all power to be lost. (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. There used to be, but it was kind of informal and there was a lot open to interpretation. Inspect all engine driven accessories in accordance with the manufacturers maintenance instructions. A. 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. These tools are designed to help you understand the official document 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. These markup elements allow the user to see how the document follows the 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. 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. All of the fractures have been grouped around certain manufacturing dates between April 1, 1998, and March 31, 2000, inclusive. 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. Some reports are quite specific about a recent prop strike in the engines history. Dealing with them on this issue is fodder for another article, however. DeJoris explains, "Take for example the prop governor drive the rotating mass in the prop governor, mainly the flyweight assembly can really be problem if suddenly stopped. 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. Yet, the company recently published a new Service Bulletin, SB No. 2 Blade Continental O-200/Lycoming O-235 Ground Adjustable STOL Propeller $ 74CK $ 76AK-2 $ FIND A DEALER NEAR YOU. O-435, and TIO-541 series engines being exempt. The decision was made for me by an advertisement in Trade-A-Plane. from 54 agencies. Document Drafting Handbook "You naturally think of the crankshaft and things that are directly connected to the engine, but you don't think of other accessories. The engine makers seem to agree quite strongly as does the FAA. Now because of the extent of disassembly required to inspect the gear, you end up performing other maintenance as well. as a result of sudden stoppage. on 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. A bit of homework will go a long way towards helping you persuade your customer to do the right thing. Start dateSep 28, 2016. daily Federal Register on FederalRegister.gov will remain an unofficial Now I had to determine the consequences. (ii) If TCM notifies you that the crankshaft is serviceable, the propeller assembly may be reinstalled. At least thats our goal. At what point after a prop strike do you need an engine teardown and inspection? 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. The Public Inspection page may also He used a football analogy of a player who can be brutally tackled and get right up, then trip over a bucket and break his leg. Steve Whitson, AOPA 593652, of Perris, California, has more than 3,000 hours and owns a 1977 Cessna 210. on We see flyweights and connecting hardware, in some designs, brutalized quite frequently by sudden stoppage. (2) After obtaining the results of the core sample evaluation, disposition the crankshaft as follows: (i) If TCM notifies you that the crankshaft is not serviceable, replace the crankshaft with a serviceable crankshaft of the same part number before further flight. 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). documents in the last year, 41 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. I spoke with several shop owners and asked their opinion. Talking about whether to have the engine overhauled or just inspected, Tunnel said it can be penciled out. Forums. Lycoming has reports of ground strikes, which have resulted in overstressed connecting rod bolts, that failed later. SUMMARY: The FAA is adopting a new airworthiness directive (AD) that supersedes an existing AD, for Lycoming Engines (formerly Textron Lycoming), direct-drive A prop that hits so hard as to bend the crank flange is only one of several considerations. corresponding official PDF file on govinfo.gov. This damage can result in catastrophic engine failure. informational resource until the Administrative Committee of the Federal ", Case in point 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. Compliance with this service bulletin is mandatory per AD 91-14-22. 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. 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. Thread starter kevmor99; Start date Sep 28, 2016; K. kevmor99 Start with all relative ADs, collect all service bulletins and service letters offered by the particular engine manufacturer, and sit with the insurance adjuster. Its also important to point out that this is not the only Lycoming bulletinthat discusses prop strikes. AC 43.13-1B has lots of general information in Chapter 8 on prop strikes. Panagotacos recently paid $66 for the list of a 1956 Cessna 182, which is in his shop. 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. So carefully consider all factors related to propeller strikes. documents in the last year, 830 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. The opinions differ with each individual, and what maintenance technicians would do personally is quite often at odds with their professional opinions. 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. Crankshafts with this type of subsurface defect will fail. Actually they are fairly consistent. 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. If the engine is being disassembled does the estimate include testing after reassembly? 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. Finding out what needs to be done and whether that agrees with what you feel should be done, whos going to do it and who is going to pay for it, should help make the experience of a prop strike/sudden stoppage as painless as possible. 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. In our response to readers we quote the latest manufacturer directives and FAA guidance, and add our perspectives and experience to hopefully help the owner feel his or her ultimate decision is the right and legal one. ", Director of Maintenance: "If you have to ask, it requires engine tear-down and inspection.". TCM mandatory service bulletin (MSB) 005B, dated May 25, 2000, and MSB 005C, dated October 10, 2000, were issued to include the SN's of those additional suspect crankshafts. A copy of it, if filed, may be obtained from the Rules Docket at the location provided under the caption ADDRESSES. 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. You can bet the fellow who hit the traffic cone never made a logbook entry unless the engine had to be repaired. 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. Studies have shown that a 100-amp alternator can impose a. 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. But let me start this section with a caveat: There is no black and white, and the subject under discussion is the grayest of the gray areas. Most insurance carriers don't want to face the prospect of the engine or propeller leaving the aircraft due to a prop strike!". TCM's SB 97-6 specifies the mandatory items that must be replaced when the engine is torn down. Following any propeller strike, complete disassembly and inspection of all rotating engine components is mandatory and must be accomplished prior to further flight. 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? Copies 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. the most are "prop strike." On the record, owners said that if someone came into their shop and said he or she had an aircraft with a prop strike, they would follow the procedures outlined above to the letter. The energy typically finds paths throughout the engine and through the accessories and even to the engine mounts themselves. Removing and reinstalling a propeller take just a few hours, and the prop shops don't care who brings the job through the door. Moreover, the crank is not the only critical element in a prop-strike incident. on Accordingly, the FAA has not consulted with state authorities prior to publication of this proposed rule. FIND A DEALER. Aircraft was involved in a prop strike. 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. Now that I had a definition, what would I have to do about such an event? continental prop strike ad. the official SGML-based PDF version on govinfo.gov, those relying on it for Since that time, the FAA has obtained information regarding 13 crankshaft failures. 01/17/2023, 159 The Lycoming information is more complicated and equivocating than the TCM directives in our opinion, as well explain. Lycoming's new SB seems to generalize the term propeller strike and sudden stoppage to be quite inclusive. 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.". Prop strike on Continental. If you've attended AirVenture or any of the other major airshows, you've heard it. regulatory information on FederalRegister.gov with the objective of You could identify its sound with your eyes closed. Communications should identify the Rules Docket number and be submitted Start Printed Page 70655in triplicate to the address specified under the caption ADDRESSES. This feature is not available for this document. This year's numbers have placed us in the top 10, highlighting another strong year of property development. Say the engine is turning only 1000 rpm, barely above an idle. Many insurance companies will not pay for any inspection requirements unless damage from the incident is found during that inspection. A tear down of most direct drive engines isnt a major repair but we recommend using a certified repair station or the factory for that action as well as the level of NDT testing will be significant and required to be done by certified people for such critical NDT inspections. The investigation revealed that the crankshafts failed due to subsurface defects in the number one crankshaft connecting rod journal. This can cause major internal engine damage without visible prop damage. Consider the accessories. 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. 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. The pressure from an owner to ignore the engine and fix the prop may be great, but it is certainly in the best interest of the mechanic's career to persuade the owner that any amount of damage to the propeller constitutes the need for a thorough inspection. Service Bulletin 533A has the pertinent Lycoming prop-strike definitions for all Lycoming direct drive engines. This later causes a total bolt failure and a dynamic disassembly in flight, which may or may not be correctly, attributed as to the real cause of the bolt failure. Compliance with this service bulletin is mandatory per AD 91-14-22. +1.251.436.8122 08:00 - 17:00 Gasoline Engines Parts +1.972.586.1000 24 hours Avionics +1.251.990.5080 08:00 - 17:00 Latin America 02:12 ART Factory New & Factory Rebuilt Gasoline Engines +1.251.436.8101 10:00 - 19:00 Gasoline Engine Overhauls & MRO +55.11.99923.9579 08:00 - 17:00 Technical Support (AvGas & Jet-A) +1.888.826.5465 09:00 - 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. (f) This amendment becomes effective on December 12, 2000. Not every prop strike results in sudden stoppage, but it doesn't take much to damage some of these accessories. 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. I've heard that a Continental doesn't require a tear down and inspection as a Lycoming does, but looking at Continental's Service Bulletin SB96-11B it looks Home. The Lycoming information is more complicated and equivocating than the TCM directives in our opinion, as well explain. 49 U.S.C. Or it could be an engine with illegal performance enhancements for a certified engine such as shaved decks to increase compression. A propeller strike can occur at taxi speeds and during touch-and-go operations with propeller tip ground contact. 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. 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." (2) Any incident during engine operation in which the propeller impacts a solid object that causes a documents in the last year, 117 He adds, "This limits their liability exposure. (e) The actions required by this AD shall be performed in accordance with Teledyne Continental Motors MSB 00-5C, dated October 10, 2000. Unfortunately, it may be the next owner who discovers any hidden damage. 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. Hit a small rock, which is in his shop dates between April 1, 1998 and... 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