continental prop strike ad
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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. dont do it. WebDoing an engine teardown after a prop strike is as close to a no-brainer as these things get. 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." Is it an occasion when a prop blade strikes a foreign object and the engine continues to run? 
"The result is that those flyweights that are hanging on by 1/8-inch pins can easily bend, twist, or damage those pins. remain mandatory for aircraft operated under part 91 due to other regulatory requirements, even though they are not part of the inspection program. WebAD/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. CONTINENTAL STARTER ADAPTERS AVAILABLE FOR EXCHANGE Most models. 0000026585 00000 n
J/ Webcontinental prop strike ad. farmer john vs farmer bill wetsuit. %PDF-1.5
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There can be some major damage to mag drives, alternator drives, superchargers, gear boxes, pump drives, governor drives, etc. Its also important to point out that this is not the only Lycoming bulletinthat discusses prop strikes. I spoke with several shop owners and asked their opinion. This incident includes propeller strikes against the ground. Although the propeller can continue to turn, damage to the engine can occur, possibly with progression to engine failure Sudden RPM drop on impact to water, tall grass, or similar yielding medium where propeller damage does not usually occur 
WebA propeller strike can occur at taxi speeds and during touch-and-go operations with propeller tip ground contact. A special note to experimental aircraft builders or someone looking for an engine upgrade: Beware of that great deal on an engine with a less than stellar or unknown history. 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). Lycoming's new SB seems to 0000001350 00000 n
We see flyweights and connecting hardware, in some designs, brutalized quite frequently by sudden stoppage. T.C.M. Textron Lycoming, in their Service Bulletin 533, takes the approach that the safest procedure is to take the engine apart for inspection following any incident involving propeller blade damage. i}g In short, all accessories become suspect to damage under either a prop strike or sudden stoppage incident. Refer McCauley Service Bulletin 137W. 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. PROPELLER STRIKE INSPECTIONS. Inspect all engine accessories in accordance with the manufacturer's instructions.". 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 A.D. note 91-14-22 and Service Bulletin 475B at a minimum. In fact, the customers were sold their own crank. They easily crack without bending so the dial indicator does not tell all. 533 C Recommended Action for Sudden Engine Stoppage, Propeller/Rotor Strike or Loss of Propeller/Rotor Blade or Tip Publications Email Print Facebook DATE: October 18, 2016 MODELS AFFECTED: All Lycoming reciprocating aircraft engines TIME OF COMPLIANCE: BEFORE FURTHER FLIGHT The opinions differ with each individual, and what maintenance technicians would do personally is quite often at odds with their professional opinions. All rights reserved. We like to think that those we deal with are honest, however, there's a chance of impropiety by a seller, so when buying an airplane, be careful. In addition, propeller strikes also include situations where an aircraft is stationary and a landing gear collapse occurs causing one or more blades to be bent, or where a hangar door (or other object) hits the propeller blade. 0000007788 00000 n
According to DeJoris, "Hartzell requires hub replacement if any blade in the assembly is bent beyond repair limits due to impact damage. 
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. 0000018430 00000 n
March 22, 2023 He adds, "This limits their liability exposure. There used to be, but it was kind of informal and there was a lot open to interpretation. WebTELEDYNE CONTINENTAL AIRCRAFT ENGINE . the most are "prop strike." 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. WebA constant speed prop will increase the load at a uniform rate, but the tips hitting things is an impact load. 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. 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. In light of the preceding information, would you be comfortable doing that? Does 500 rpm fit that bill? 0000007502 00000 n
I can't remeber where I found the below artice, but it is very good and explain prop strikes. 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. Not every prop strike results in sudden stoppage, but it doesn't take much to damage some of these accessories. 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. A slam stop will detune the weights and damage the bushings so they can no longer do their job of helping to balance the crank while operating. It pretty much echoes the TCM service bulletin but adds two other situations. WebContinental Aerospace Technologies, Inc. (Continental) has received reports from the field of piston pin bushing material being found in the oil sump or the oil filter. specific gravity of naoh. Consider the accessories. Are the minimum legal requirements being met? Is it hitting a rock or other loose object with a prop blade while operating on a runway or taxiway? The decision was made for me by an advertisement in Trade-A-Plane. Typical New Piston Pin Bushings II. Quiz: 6 Questions To See How Much You Know About Aerodynamics. %%EOF
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). 
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QCWjdP? Others will pay for all costs for the inspection and for any parts needed due to the incident. Others are not necessarily so forthcoming, so reliable conclusions are difficult to draw. 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. For example, how much propeller filing constitutes "minor dressing?" 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. Poor aircraft control during gusty crosswinds, or a porpoised landing, are some of the most common causes of prop strikes. Highly stressed connecting rod bolts also take a beating from a prop-strike, which can cause a slight stretch. Any incident during engine operation where the The alternator is turning 3000 rpm because of gearing. We spoke with the pilots, and they said there was a 3" dent aft of the cowling, additional dents behind the door, and the deer impacted the prop, requiring an engine tear-down. Note 10: 2400 hours TBO may apply. Here's How To Use A Forward Slip To Correct. 
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. What to Know About Part 139 SMS for Airports, 8 Decisions Amsterdam Airport Schiphol Says Will Lead to Quieter, Cleaner Aviation -- Including No More Private Jets, TSA Begins Process To Federalize Security Operations at Jackson Hole Airport, Phillip A. Washington Statement, Withdraw from FAA Nomination, Transportation Security Administration (TSA). 0000002797 00000 n
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. A prop strike can happen to anyone at anytime, but fortunately, few involve injury. 
Another thing to look for in the logs is a prolonged period of inactivity, such as years between annual inspections and oil changes. 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? 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. Propeller strikes against the ground or any object can cause engine and component damage even though the propeller may continue to rotate. Artice, but the tips hitting things is an impact load dial does. Results in sudden stoppage incident highly stressed connecting rod bolts also take a beating from a prop-strike, can! 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