I think the question for the A&P though is "on what basis did you
overhaul the engine?". If the A&P did not use the manufactor's
instructions to overhaul the engine, did he just make it up as he went?
If he's coming up with his own methods of overhauling engines, does he
have engineering data behind him showing that it meets safety
requirements? I think this is more than just following SBs, its trying
to invent new ways of overhauling engines instead of using the Lycoming
instructions. When I overhaul my engine I expect it will be done in
compliance with Lycomings instructions.

-Robert



Dave S wrote:
http://www.avweb.com/eletter/archive...ll.html#192405

The FAA dinged an A&P for not complying with a "mandatory" SB prior to
returning an aircraft to service in a part 91 environment. The NTSB
upheld it, breaking with decades of precedent.