Tue Oct 17, 2000 11:39 am
>>That doesn't mean every part you might add to a certified aircraft needs a STC or Field Approval, because there may be a TSO or PMA for such new & improved parts.
Actually,from my dealings with the FAA, anything new, TSO part or PMA parts that you might add to certified aircraft needs an STC or a 337 Field Approval. Non-TSO/PMA/PC parts are illegal to be installed.
>>I know of a few people who have their mechanic put the old avionics back into their aircraft before each inspection to bypass the hassle of dealing with the FAA.
This, I suspect because the installations on their aircraft are illegal as far as FAA is concerned. This is, however, is going on quite a bit...That's why it's hard to find aircraft owners out there willing to go through an STC or 337 that requires flight test because the aircraft has to be put through an experimental certificate and conformity inspection is required.
Best Regards,
Nut