# SDR DALA2023051703938

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2023
- Submitted: May 17, 2023
- Operation: Air carrier
- Aircraft: [N829NW](https://openairdocs.org/aircraft/N829NW), registered now
- Make and model: Airbus A330-302
- Registry model: [Airbus A330-302](https://openairdocs.org/model/airbus-a330-302) (OpenAirDocs)
- Aircraft serial: 1721
- Aircraft time: 25,517 hours, 3,299 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- 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/DALA2023051703938

## Discrepancy

SHIP 3329 DONT PASS OPERATIONAL TEST EPSU-EMERGENCY POWER SUPPLY UNIT 15WL PASSE NGER CABIN (1 EA). CORRECTIVE ACTION: PERFORMED TSM AND REPLACED EPSU 15WL. PERFORMED OPERATIONAL TEST AND BITE TEST EPSU AND PERFORMED POWER UP OPERATIONAL TEST OF CIDS. TEST ARE GOOD. (2768380)

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