# SDR AALA202412308997

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 27, 2024
- Submitted: December 30, 2024
- Operation: Air carrier
- Aircraft: [N733AR](https://openairdocs.org/aircraft/N733AR), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 33524
- Aircraft time: 40,902 hours, 4,698 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702030
- Condition: Discharged
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202412308997

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: LH NO. 3 OVER-WING DOOR BACKUP BATTERY WILL NOT CHARGE. MAINTENANCE REPLACED LH NO 3 OVER-WING DOOR BACKUP BATTERY M52122, IAW AMM 52-12-19.

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