# SDR AALA202304046206

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2023
- Submitted: April 4, 2023
- Operation: Air carrier
- Aircraft: [N723AN](https://openairdocs.org/aircraft/N723AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 33125
- Aircraft time: 39,121 hours, 4,600 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- 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
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202304046206

## Discrepancy

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.

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