# SDR DALA2019031801776

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2019
- Submitted: March 18, 2019
- Operation: Air carrier
- Aircraft: [N502DN](https://openairdocs.org/aircraft/N502DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0135
- Aircraft time: 6,665 hours, 793 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- Location: Cabin
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2019031801776

## Discrepancy

ON ARRIVAL, FOUND DISPATCH MESSAGE "CABIN EMERGENCY EXIT LIGHT". REPLACED EMERGENCY POWER SUPPLY UNIT 102WL3. LP 3391175

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