# SDR YENA20160114015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 14, 2016
- Submitted: January 15, 2016
- Operation: Air carrier
- Aircraft: [N504JB](https://openairdocs.org/aircraft/N504JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1156
- Aircraft time: 62,965 hours, 23,485 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 321431
- Part serial: 777444
- Condition: Failed
- Location: Emergency Lights
- Part time: 3,072 hours, 1,076 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA20160114015

## Discrepancy

CABIN EMERGENCY LIGHTING EMERGENCY POWER SUPPLY UNIT FWD LT MID RT AND AFT LT INOPERATIVE.  REPLACED EPSU FWD-LT, MID-RT, AND AFT-LT.  OPS CHECK GOOD IAW AMM 33-50-00.

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