# SDR DALA2020120804024

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 5, 2020
- Submitted: December 8, 2020
- Operation: Air carrier
- Aircraft: [N510DN](https://openairdocs.org/aircraft/N510DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0204
- Aircraft time: 11,528 hours, 1,036 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Rccb
- Condition: Malfunctioned
- Location: Emergency Lights
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020120804024

## Discrepancy

AT DEPARTURE, LAS ROW 20-39 EVERY OTHER 40-55 ALL EMERGENCY LIGHTS TURN ON WHEN ARMED (ALSO REF MEL LP 6822092).  CORRECTIVE ACTION: REMOVED & REPLACED RCCB (1023XP), PER A350 AMM 24-71.  OPERATIONS CHECK NORMAL, ALL EMERGENCY LIGHT OPERATIONS NORMAL, REF ERA 588941-14 REV A.

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