"O. Sami Saydjari" wrote:

Is there a definitive place where a definitive list is supposed to be
kept.

No. The manufacturer will ship the aircraft with a list of installed equipment. From
that point on, the usual paperwork is simply that a logbook entry is made and the W&B
adjusted when any equipment is removed or installed. Some people do make up and
maintain such a list, but this is not usually done for privately owned aircraft.

Is the list supposed to include serial
numbers along with model numbers?

The logbook entry should have model and serial numbers for any added equipment. The
original equipment list for my aircraft does not contain serial numbers of anything
other than major components, such as the engine.

George Patterson
This marriage is off to a shaky start. The groom just asked the band to
play "Your cheatin' heart", and the bride just requested "Don't come home
a'drinkin' with lovin' on your mind".