# SDR DALA12010753271

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2012
- Submitted: October 24, 2012
- Operation: Air carrier
- Aircraft: [N371NW](https://openairdocs.org/aircraft/N371NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 1535
- Aircraft time: 34,207 hours, 15,296 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Malfunctioned
- 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/DALA12010753271

## Discrepancy

DURING NON ROUTINE CHECK, FOUND EPSU AT MID LT CAUSING BATTERY FAULTS. MX REPLACED MID LT EPSU AND FUNCTIONAL CHECK WAS NORMAL.

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