# SDR AALA201812069006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2018
- Submitted: December 6, 2018
- Operation: Air carrier
- Aircraft: [N811AB](https://openairdocs.org/aircraft/N811AB), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 40629
- Aircraft time: 13,172 hours, 1,420 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201812069006

## Discrepancy

WITH NO POWER ON THE AIRCRAFT,  FOUND ROWS 25 - 30 EMERGENCY LIGHTS ON. UNABLE TO RESET. THE AIRCRAFT WAS GROUNDED.  REMAINED ON 40 MINUTES.  REPLACED THE CONTROL UNIT BATTERY IAW  AMM 33-51-07.  OPS CHECKED NORMAL.

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