# SDR AALA202010279024

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 2020
- Submitted: October 29, 2020
- Operation: Air carrier
- Aircraft: [N823AN](https://openairdocs.org/aircraft/N823AN), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 40641
- Aircraft time: 14,138 hours, 1,489 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Control Unit
- Part number: 100260103
- Condition: Faulted
- 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/AALA202010279024

## Discrepancy

AIRCRAFT WAS NOT GROUNDED.  ACCOMPLISHED EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK, PER TASK CARD MCM 2803.  MAINTENANCE MESSAGE 33-12107 FOUND IN EXISTING FAULTS.  ACCOMPLISHED FIM 33-50-F1.  REPLACED WIRELESS CONTROL UNIT M3351007 AT DOOR 4 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK, PER AMM 33-51-07.

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