# SDR AALA202304045101

- 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): [5220 · Emergency Exits](https://openairdocs.org/jasc/5220)
- 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
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202304045101

## Discrepancy

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

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