The U.S. aircraft register, updated daily
Parts

Addition Apu

No failure report names the addition apu. 2 FAA approvals let 1 company make a replacement addition apu, Standardaero Business Aviation Services LLC (Formerly) Garrett Aviation Services holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Raytheon Corporate Jets Inc HAWKER 800 (2), Raytheon Corporate Jets Inc BAE 125 (1), British Aerospace HS 125 (1).

MakerPartReplacesFitsGrantedStatus
Standardaero Business Aviation Services LLC (Formerly) Garrett Aviation ServicesAddition APU Access 602175-0384Modification Parts/KitRaytheon DH-125-1A, DH-125-3A, DH-125-3A/RA2003-02-18current
Standardaero Business Aviation Services LLC (Formerly) Garrett Aviation ServicesAddition APU Access 602175-0384Modification Parts/kitRaytheon DH.125-1A, DH.125-3A, DH.125-3A/RA2001-11-01current

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.