# SDR YENA201612071083

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2016
- Submitted: December 9, 2016
- Operation: Air carrier
- Aircraft: [N508JL](https://openairdocs.org/aircraft/N508JL), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1257
- Aircraft time: 58,563 hours, 21,445 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 32145410
- Part serial: 3050
- Condition: Failed
- Location: Emergency Light
- Part time: 37,205 hours, 13,110 cycles
- 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/YENA201612071083

## Discrepancy

DURING MAINTENANCE, AN OPS CHECK WAS PERFORMED. FWD ESPU BATTERY FAILED DURING BATTERY TEST.  EMERGENCY LIGHT WAS FOUND TO BE INOPERATIVE.  R & R THE BATTERY PACK IAW AMM IAW 33-51-38.  R & R L2 ESPU (10WL) IAW AMM 33-51-38.  OPS CHECK PASSED.

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