The U.S. aircraft register, updated daily
Parts

Transmitter Housing

No failure report names the transmitter housing. 2 FAA approvals let 2 companies make a replacement transmitter housing, Loral Electro-Optical Sys holding the most (1).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Boeing 747 (2).

MakerPartReplacesFitsGrantedStatus
Lockheed Martin, Electro-Optical SystemsAFT Transmitter Housing 2007848-1Modification PartBoeing 747-4301996-06-13current
Loral Electro-Optical SysAFT Transmitter Housing 2007848-1Modification PartBoeing 747-4301995-11-13current

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.