# SDR DALA2020092003136

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 2020
- Submitted: September 22, 2020
- Operation: Air carrier
- Aircraft: [N378NW](https://openairdocs.org/aircraft/N378NW), registered now
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 2092
- Aircraft time: 48,036 hours, 23,171 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020092003136

## Discrepancy

INOP EPSU-EMERGENCY POWER SUUPLY UNIT 11WL IN PASSENGER CABIN.  CORRECTIVE ACTION: REPLACED EPSU-EMERGENCY POWER SUPPLY UNIT (11WL) IN PASSENGER CABIN (1EA) ON SERVICEABLE CONDITION PN 3214-54-10 SN 2448, AS PER A320 FAM AMM 33-51-38-400-001-A.  OPERATIONAL TEST OF THE EPSU AMM 33-51-00-710-001-A.  TEST IS GOOD.

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