Forward Housing
No failure report names the forward housing. 2 FAA approvals let 2 companies make a replacement forward 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 forward housing and sell it as an approved part for the models named. These are the companies holding such approvals for a forward housing:
For these models most: Boeing 747 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Lockheed Martin, Electro-Optical Systems | Forward Housing Assembly 2011595 | Modification Part | Boeing 747-430 | 1996-06-13 | current |
| Loral Electro-Optical Sys | Forward Housing Assembly 2011595 | Modification Part | Boeing 747-430 | 1995-11-13 | 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.