What was found
AIRCRAFT IN BASE MAINTENANCE: THE BACK-UP BATTERY LOCATED ABOVE THE R-3 DOOR FAILED THE BATTERY TEST. REMOVED AND REPLACED R-3 DOOR OVER WING ESCAPE SYSTEM BACKUP BATTERY IAW B777-300 AMM 52-12-24.
- 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)
- 5210 · Passenger/Crew Doors
- Part
- Battery
- Part number
- BPAS105
- Part serial
- 3177
- Condition
- Failed
- Location
- Zone 800 - Doors
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.