# SDR AALA202201240543

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 22, 2022
- Submitted: January 24, 2022
- Operation: Air carrier
- Aircraft: [N722AN](https://openairdocs.org/aircraft/N722AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 31547
- Aircraft time: 34,434 hours, 4,060 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/AALA202201240543

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DOOR 4L EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY PACK AT M33405 PER AMM 33-51-06.

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