# SDR AALA202307311315

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 2023
- Submitted: July 31, 2023
- Operation: Air carrier
- Aircraft: [N777AN](https://openairdocs.org/aircraft/N777AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29585
- Aircraft time: 92,739 hours, 11,367 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- 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/AALA202307311315

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: L1 DOOR EMERGENCY LIGHT INOPERATIVE. REPLACED EMERGENCY LIGHTING BATTERY PACK POWER SUPPLY ASSEMBLY M33424 PER AMM 33-51-06.

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