# SDR AALA20170509006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2017
- Submitted: May 11, 2017
- Operation: Air carrier
- Aircraft: [N822AN](https://openairdocs.org/aircraft/N822AN), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 40642
- Aircraft time: 2,087 hours, 227 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Control Unit
- Part number: 100260103
- Part serial: 1150285
- Condition: Faulted
- Location: Emergency Lights
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20170509006

## Discrepancy

ACFT HEALTH MONITORING ALERTS RECEIVED FOR THE WIRELESS EMERGENCY LIGHTING SYSTEM.  REMOVED AND REPLACED THE CONTROL UNIT AT THE L4 DOOR IAW DMC-B787-A-33-51-07-00A, AND RELOADED THE CONFIGURATION SOFTWARE IAW DMC-B787- 33-51-07-04A-750A-A. OPS CHECKED GOOD.

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