# SDR AALA202609309526

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 27, 2026
- Submitted: October 1, 2026
- Operation: Air carrier
- Aircraft: [N809AA](https://openairdocs.org/aircraft/N809AA), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 40627
- Aircraft time: 40,492 hours, 5,471 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Control Unit
- Part number: C354501179
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: TX
- How discovered: C
- Nature of condition: L
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202609309526

## Discrepancy

AIRCRAFT WAS GROUNDED:  DURING EMERGENCY LIGHT OPS CHECK, J/C  78T21033001. FOUND SEATS13-17 EMERGENCY LIGHTS INOP.   MAINTENANCE REMOVED AND REPLACED WCU AT DOOR 4.

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