Extended Deck
No failure report names the extended deck. 3 FAA approvals let 2 companies make a replacement extended deck, Flight Structures INC 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 extended deck and sell it as an approved part for the models named. These are the companies holding such approvals for a extended deck:
For these models most: Boeing 747 (3).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Flight Structures INC | Extended Upper Deck Crew Rest Installation MDL 90FS004-D01 | Modification Part | Boeing 747-400 | 1995-09-11 | current |
| Zantop International Airlines INC | Extended Upper Deck De-Mod 19753, 19754, 19755, 19756, 19757 | Boeing 747-122 | Boeing 747-122 | 1995-09-05 | current |
| Flight Structures INC | Extended Upper Deck Crew Rest Installation Master Dwg List 92FS004-D01 | Modification Part | Boeing 747-400 | 1992-09-22 | 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.