On 18-Aug-2005, "Doug" wrote:

I am quite sure that one can offer an aircraft for hire with an
instructor under part 91 with an engine that has gone beyond TBO.


My understanding of the "official" FAA interpretation is as follows:
Renting an airplane, as opposed to chartering one, does not constitute a
commercial, "for hire" use. Hiring of a flight instructor is a separate
transaction not tied to the rental of the airplane. Therefore, regulations
specifically governing commercial operations do not apply to airplanes that
are rented out for instruction or for general use by pilots, regardless of
whether dual instruction is given. Of course, if the pilot renting the
airplane is going to use it for commercial purposes then the plane must meet
commercial use maintenance and operational regulations.

Because this interpretation is contrary to widely held belief it is not
surprising that a local FSDO would provide a different reading.

--
-Elliott Drucker