The U.S. aircraft register, updated daily
Parts

Atg System

No failure report names the atg system. 1 FAA approvals let 1 company make a replacement atg system, US Technical Consultants holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

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

For these models most: Mcdonnell Douglas DC-9 (1).

MakerPartReplacesFitsGrantedStatus
US Technical ConsultantsATG System Wiring Diagram, DC9-30 Continental 61092-002Santa Barbara Aerospace Inc. 61092-002McDonnell Douglas DC-9-31, -321995-08-06current

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.