Re: AD compliance

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Posted by J.M.Pirch ( on November 07, 2005 at 13:17:39:

In Reply to: Re: AD compliance posted by RT on November 06, 2005 at 17:41:16:

RT, respectfully, Jody's point is in keeping with communication that I have had with the Detroit FSDO regarding certified components on "experimental" category aircraft, specifically engine propeller combinations. In the case of the engine, so long as you wish to retain the data plate, you are expected to comply with all AD's issued pertinent to that component, eg. the recent mandatory Lycoming oil impeller AD. You are also required to maintain the appropriate log books for the engine/propeller. If you choose not to comply, and I agree that you are not required to, you are expected to surrender your data plate to the governing FSDO, whereupon you are subject to the revision of your operating limitations and may be assigned a new test period for the deviation, depending upon the judgement of the FSDO representatives. Propeller changes may also be considered significant deviations that require disclosure to the FSDO and the possibility of a corresponding test period. You may be aware that this is in keeping with the general practice of assigning a 25 hour test period for certified engine/prop combinations on initial experimental category airworthiness certificate issuance, while uncertified combinaions are assigned a 40 hour test period. Again, as reference, please see "paragraph 8" of AC 39-7c as Jody noted.

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