Parts

Ac Pt

No failure report names the ac pt. 3 FAA approvals let 2 companies make a replacement ac pt, Gm Nameplate holding the most (2).

Approved replacement parts 3 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a ac pt and sell it as an approved part for the models named. These are the companies holding such approvals for a ac pt:

Gm Nameplate 2Lucas Aerospace Cargo System 1

For these models most: Boeing 747 (2), Boeing 707 (1).

Maker	Part	Replaces	Fits	Granted	Status
Gm Nameplate	AC PT BAC27CPA502	BAC27CPA502	Boeing 707 Series	2006-02-06	current
Gm Nameplate	AC PT BAC27EEL6707	BAC27EEL6707	Boeing 747 Series	2006-01-27	current
Lucas Aerospace Cargo System	Ac pt 65B62104-508	LACSM 65B62104-508	Boeing 747-200, 400	1997-05-19	current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.