# SDR AALA202107087409

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2021
- Submitted: July 8, 2021
- Operation: Air carrier
- Aircraft: [N717AN](https://openairdocs.org/aircraft/N717AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 31543
- Aircraft time: 32,599 hours, 3,772 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: No Test
- Location: Emergency Light
- 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/AALA202107087409

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: ON CABIN WALK EMERGENCY LIGHTS TEST, DOOR 4L EMERGENCY EXIT SIGN INOPERATIVE. REPLACED POWER SUPPLY BATTERY PACK.

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