# SDR AALA202504162028

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2025
- Submitted: April 16, 2025
- Operation: Air carrier
- Aircraft: [N717AN](https://openairdocs.org/aircraft/N717AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 31543
- Aircraft time: 47,449 hours, 5,603 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- 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/AALA202504162028

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHT BATTERY M33401 AT R4 DOOR FAILS AT CHARGING.MAINTENANCE REPLACED POWER SUPPLY M33401 AT R4 DOOR IAW B777-3,OPSCHECK GOOD. REFER TO INDIVIDUAL SIGN OFF ENTRIES FOR WORK STEPSPERFORMED.

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