# SDR DALA2023022401389

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2023
- Submitted: February 24, 2023
- Operation: Air carrier
- Aircraft: [N827NW](https://openairdocs.org/aircraft/N827NW), registered now
- Make and model: Airbus A330-302
- Registry model: [Airbus A330-302](https://openairdocs.org/model/airbus-a330-302) (OpenAirDocs)
- Aircraft serial: 1716
- Aircraft time: 24,749 hours, 3,174 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: None
- Condition: None
- 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/DALA2023022401389

## Discrepancy

SHIP 3327 DONT PASS TEST EPSU-EMERGENCY POWER SUPPLY UNIT 13WL PASSENGER CABIN (1 EA). CORRECTIVE ACTION: REPLACED EPSU-EMERGENCY POWER SUPPLY UNIT 13WL AND PERFORMED BONDING CHECK. TEST IS GOOD AND OPERATIONAL TEST EPSU-EMERGENCY POWER SUPPLYUNIT IS GOOD. (2642085)

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