Lscu
No failure report names the lscu. 4 FAA approvals let 2 companies make a replacement lscu, Honeywell International INC. holding the most (2).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a lscu and sell it as an approved part for the models named. These are the companies holding such approvals for a lscu:
For these models most: Boeing 777 (4).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Honeywell International INC. | LSCU 2119804-4 | 2119804-4 | Boeing 777-200 Series | 2023-05-17 | current |
| Honeywell International INC. | LSCU 2119804-4 | S271W130-34 | The Boeing Company 777-200 Series | 2023-02-22 | current |
| Honeywell International INC, Controls and Accessories | LSCU 2119804-2 | Boeing Commercial Airplane Group S271W130-34 | Boeing 777-300 Series | 1998-06-10 | current |
| Honeywell International INC, Controls and Accessories | LSCU 2119804-4 | Boeing S271W130-34 | Boeing 777-200 | 1998-01-29 | 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.