# SDR DALA13045643308

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2013
- Submitted: September 19, 2013
- 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: 42,533 hours, 5,666 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Unknown
- Location: Emergency Lights
- 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/DALA13045643308

## Discrepancy

EPSU TEST FAILED, AFTER EPSU TEST, MESSAGE 335100 BAT/EPSU, 17WL, DOOR 4.  PERFORMED LOCALIZED SYS TEST ON  EPCU 17WL IAW AMM 33-51-00-740- 801, EPCU GIVES BATTERY FAILED. RECONNECTED PLU ON EPCU. PERFORMED LOCALIZED TEST AFTER 1 MIN, TEST OK.  PERFORMED TEST EMERGENCY LIGHTS USING MCDU ACC AMM 33-51.  NO FAULTS ACTIVE

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