Larry Dighera wrote
If the FAA mandated paper-trail from raw material to finished part is
unnecessary, why do you think it was made it a requirement?

Because it sounds good in theory while completely failing to achieve
the stated goals in practice? Because the FAA is staffed by a bunch
of useless bloody loonies? Because bureaucrats just like paperwork?
The correct answer is all of the above.

Once bitten by such a lack of records, an aircraft owner soon learns
to obtain copies of repair records AT THE TIME OF INSTALLATION, and
files them with the aircraft log books.

What percentage of aircraft valued in less than six figures do you
suppose have such records? Intent is irrelevant - all that matters is
what really happens in real life.

Michael