# SDR AALA202010289006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2020
- Submitted: October 29, 2020
- 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: 15,348 hours, 1,641 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Control Unit
- Part number: 100260103
- 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/AALA202010289006

## Discrepancy

AIRCRAFT WAS GROUNDED.  REPORTS OF EMERGENCY LIGHTING WELLS BATTERY UNITS 30 AND 23 NOT REPORTING ON THE CONFIGURATION PAGE.  REPLACED WIRELESS CONTROL UNIT (AALA202010279025) AND BATTERY (AALA202010289005) AT NR 30.  REPLACED WIRELESS CONTROL UNIT (AALA202010289006) AT NR 23.  AN OPERATIONAL CHECK WAS WAS ACCOMPLISHED, PER AMM 31-51-07.

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