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Originally Posted by DE727UPS  Look up preventitive maintenance in part 91.4??
It's very limited what you can do. However, as an owner, you could do much more under the supervision of a mechanic. I once knew a guy who overhauled his own engine and had an A and P "check" his work at regular intervals and then sign it off in the end. Not sure that was legal but it happened. Not sure the FAA spells out how much supervision is required to meet the "mechanic supervision" language. |
"Preventative Maintence" as defined by pt 43 apendix C can include a lot of maintence tasks that the owner can do themselves.
Turthermore any person can do ANY maintence task provided they are supervised by an A&P. An owner overhauling their engine under an A&Ps supervision is perfectly leagle.
Aircraft engines are VERY simple, basicly they are identical to VW bug engines and very similar to Harley engines.