# SDR DALA13052963231

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 15, 2013
- Submitted: October 16, 2013
- Operation: Air carrier
- Aircraft: N331NW
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 318
- Aircraft time: 65,232 hours, 29,292 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- 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/DALA13052963231

## Discrepancy

FOUND ON SERVICE CHECK.  EMERGENCY LIGHTS TEST FAILS. FAULTS "BATTERY AFT L".  FOUND 13WL EPSU BATTERY BAD.  REPLACED IAW AMM 33-51.  OPS OK AND EMERGENCY LIGHTS TEST PASSES.

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