Originally Posted by
Whopity
ORS4 1271 relates only to Permit to Fly aircraft, not certified aircraft with engines that have exceeded TBO.
The aircraft needs to be under a CAMO who will advise you of the engineering requirements.
Is this still true since the CAA classified flight training of part-owners as non-commercial (or "private" in old speak)? And with the SDMP not necessarily requiring engine replacement at TBO?