# SDR DALA2025102307769

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2025
- Submitted: October 23, 2025
- Operation: Air carrier
- Aircraft: [N814NW](https://openairdocs.org/aircraft/N814NW), registered now
- Make and model: Airbus A330-323
- Registry model: [Airbus A330-323](https://openairdocs.org/model/airbus-a330-323) (OpenAirDocs)
- Aircraft serial: 0806
- Aircraft time: 83,693 hours, 10,981 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: No Test
- Location: Zone 200
- 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/DALA2025102307769

## Discrepancy

FOUND THE CIDS EPSU SYS TEST EPSU(FIN:16WL) DOOR 3 CLASS1 FAULT MESSAGE.   REMOVED & REPLACED EPSU 16WL AND R/R THE EPSU BATTERY AS PER A330 AMM 33-51-38. (1267110).

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