What was found
AIRCRAFT IN BASE MAINTENANCE: L3 DOOR OVER WING ESCAPE SYSTEM BACKUP BATTERY PACK FAILED OPERATIONAL CHECK. REMOVED AND REPLACED L-3 DOOR OVER WING ESCAPE SYSTEM BACKUP BATTERY
- Difficulty date
- April 1, 2023
- Submitted
- April 4, 2023
- Operation
- Air carrier
- Aircraft
- N723AN
- Make and model
- Boeing 777323ER
- Aircraft serial
- 33125
- Aircraft time
- 39,121 hours, 4,600 cycles
- System (JASC)
- 5220 · Emergency Exits
- Part
- Battery
- Part number
- BPAS105
- Part serial
- 1879
- Condition
- Failed
- Location
- Zone 200 - Fuse
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.