# SDR AALA202106079018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 5, 2021
- Submitted: June 7, 2021
- Operation: Air carrier
- Aircraft: [N821AN](https://openairdocs.org/aircraft/N821AN), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 40640
- Aircraft time: 17,789 hours, 1,957 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: No Test
- Location: Emergency Lights
- 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/AALA202106079018

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: PREFORMED EMERGENCY LIGHTING SYSTEM OPERATIONAL TEST, FOUND FAULT MESSAGES 33-11416, 33-11411, 33-11311. REPLACED #11 WIRELESS BATTERY UNIT PER AMM 33-51-07.

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