# SDR DALA2023020800998

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2023
- Submitted: February 8, 2023
- Operation: Air carrier
- Aircraft: [N808NW](https://openairdocs.org/aircraft/N808NW), registered now
- Make and model: Airbus A330-323
- Registry model: [Airbus A330-323](https://openairdocs.org/model/airbus-a330-323) (OpenAirDocs)
- Aircraft serial: 0591
- Aircraft time: 82,358 hours, 10,891 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/DALA2023020800998

## Discrepancy

SHIP 3308 INOP EPSU-EMERGENCY POWER SUPPLY UNIT 18WL ON PASSENGER CABIN. CORRECTIVE ACTION: REPLACED EPSU-EMERGENCY POWER SUPPLY UNIT 18WL ON PASSENGER CABIN, PERFORMED BONDING CHECK. PERFORMED BITE OF THE SMOKE DETECTION SYSTEM AND PERFORMED CHECK OF THE EMERGENCY POWER SUPPLY UNITS BY BITE CHECK. ALL TEST AND BONDING CHECK ARE GOOD. (2616437)

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