# SDR AALA202302151059

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2023
- Submitted: February 15, 2023
- Operation: Air carrier
- Aircraft: [N807AA](https://openairdocs.org/aircraft/N807AA), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 40625
- Aircraft time: 34,956 hours, 4,104 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Control Unit
- Part number: 100260103
- Condition: Fault Message
- Location: Zone 800 - Doors
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202302151059

## Discrepancy

AIRCRAFT WAS GROUNDED: FAULT CHECK DISPLAYED FAULT CLASS 3-DOOR 2 LEFT AFT REMOTE WELS CONTROL UNIT BATTERY POWER IS DEGRADED. REMOVED AND REPLACED WIRELESS CONTROL UNIT 08 AT DOOR 4R.

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