# SDR AALA202412160643

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2024
- Submitted: December 16, 2024
- Operation: Air carrier
- Aircraft: [N810AN](https://openairdocs.org/aircraft/N810AN), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 40628
- Aircraft time: 33,412 hours, 4,463 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 100260201
- Condition: Discharged
- 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/AALA202412160643

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHTS ATTACHED TO SEATS 13-18 HED  NOT WORKING ON BOTH SIDES OF AISLE. SYSTEM FAULTED DOOR 3LH FWD WCU 33-114426. MAINTENANCE REPLACED WELS UNIT #31 BATTERY IAW AMM 33-51-07-02B-720A.

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