Battery Backup
No failure report names the battery backup. 2 FAA approvals let 2 companies make a replacement battery backup, Rockwell Collins INC. 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 battery backup and sell it as an approved part for the models named. These are the companies holding such approvals for a battery backup:
For these models most: Boeing 777 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Rockwell Collins INC. | Battery Backup Module (BBM-2100) 822-1998-101 | Boeing P/N 822-1998-101 | Boeing 777-200 Series, 777-300ER Series | 2005-09-16 | current |
| Avtech Corporation | Battery Backup Unit 1922-1 | GEC MARCONI 290-1-50010 | Boeing 777-200 | 1995-08-15 | 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.