# SDR AALA202312043953

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2023
- Submitted: December 4, 2023
- Operation: Air carrier
- Aircraft: [N721AN](https://openairdocs.org/aircraft/N721AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 31546
- Aircraft time: 42,595 hours, 4,873 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 285W0955102
- Condition: Inoperative
- Location: Zone 200 - Fuse
- 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/AALA202312043953

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DOOR 1R EPAS GREEN FLASHING LIGHT INOPERATIVE. REMOVED AND REPLACED BATTERY EMERGENCY POWER ASSIST (EPAS). PER AMM 52-12-20. OPERATIONAL CHECK NORMAL.

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