Quad Seat
No failure report names the quad seat. 6 FAA approvals let 2 companies make a replacement quad seat, Sextant In-Flight Systems holding the most (4).
Approved replacement parts 6 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a quad seat and sell it as an approved part for the models named. These are the companies holding such approvals for a quad seat:
For these models most: Boeing 747 (6).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Sextant In-Flight Systems | Quad Seat Harness 171859-01 | Boeing 171859-01 | Boeing 747-300 Series | 1999-07-15 | current |
| Sextant In-Flight Systems | Quad Seat Harness 171657-01 | Boeing 171657-01 | Boeing 747-300 Series | 1999-07-11 | current |
| B/E Aerospace INC, Avionics Division | Quad Seat Harness 171166-01, 171166-02 | Boeing 171166-01, 171166-02 | Boeing 747-300 Series | 1999-05-13 | current |
| B/E Aerospace INC, Avionics Division | Quad. Seat Harness 171522-01, 171522-02 | Boeing 171522-01, 171522-02 | Boeing 747-200C Series | 1999-05-13 | current |
| Sextant In-Flight Systems | Quad. Seat Harness 171522-01, 171522-02 | Boeing 171522-01, 171522-02 | Boeing 747-200C Series | 1999-05-13 | current |
| Sextant In-Flight Systems | Quad Seat Harness 171166-01, 171166-02 | Boeing 171166-01, 171166-02 | Boeing 747-300 Series | 1999-05-13 | 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.