# SDR DALA1146873227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2011
- Submitted: August 8, 2011
- Operation: Air carrier
- Aircraft: N327NW
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 297
- Aircraft time: 59,833 hours, 26,836 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Condition: Inoperative
- Location: Cabin
- 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/DALA1146873227

## Discrepancy

DURING NON ROUTINE CHECK, FOUND EMERGENCY LIGHT AT ROWS 18, 19, 20, 24, 25, AND 26 WOULD NOT TEST.  MAINTENANCE REPLACED EPSU UNIT AND FUNCTIONAL TEST WAS NORMAL.  AIRCRAFT RETURNED TO SERVICE.

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