# SDR DALA2018081094972

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2018
- Submitted: August 10, 2018
- Operation: Air carrier
- Aircraft: [N504DN](https://openairdocs.org/aircraft/N504DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0160
- Aircraft time: 3,272 hours, 291 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Circuit Board
- Condition: Faulted
- Location: Emergency Lights
- Stage of operation: CR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2018081094972

## Discrepancy

FLIGHT CABIN EMERGENCY EXIT LIGHT ILLUMINATED AFTER 1 HOUR IN FLIGHT.  PERFORMED EPCD BIT TEST AND FOUND PCB-SPB-SPDB1 SLOT C FAULT. RESEATED SLOT C PCB AND EPDC BIT TEST NORMAL.

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