# SDR AALA201902289018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 2019
- Submitted: February 28, 2019
- Operation: Air carrier
- Aircraft: [N828AA](https://openairdocs.org/aircraft/N828AA), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 40648
- Aircraft time: 7,621 hours, 739 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Faulty
- Location: Cabin
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201902289018

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: 2L EXIT SIGN TURNED ON AND OFF INTERMITTENTLY. MAINTENANCE REPLACED WELS BATTERY UNIT AT DOOR 2L PER AMM  33-51-07.

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