# SDR AALA201712059062

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 1, 2017
- Submitted: December 6, 2017
- Operation: Air carrier
- Aircraft: [N824AN](https://openairdocs.org/aircraft/N824AN), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 40643
- Aircraft time: 4,075 hours, 423 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Controller
- Condition: Faulted
- Location: Cockpit
- 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/AALA201712059062

## Discrepancy

AIRCRAFT WAS NOT GROUNDED.  AIRPLANE HEALTH MONITORING ALERT RECEIVED FOR CLASS 31 REMOTE WIRELESS EMERGENCY LIGHT SYSTEM CONTROL UNIT LAMP DRIVER POWER CIRCUIT FAILURE, FAULT CODE 33-11931.  REMOVED AND REPLACED OVERHEAD FLIGHT ATTENDANT REST WELS REMOTE CONTROL UNIT AT M3351033 PER AMM DMC-B787-A-33-50-F1-VOA-421A-A.  ACCOMPLISHED ACTIVATION OF EMERGENCY LIGHT SYSTEM POWER PER AMM 33-51-00-04A-730B.  OPERATIONAL CHECK GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.