# SDR YENA 20110421240

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2011
- Submitted: April 25, 2011
- Operation: Air carrier
- Aircraft: [N509JB](https://openairdocs.org/aircraft/N509JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1270
- Aircraft time: 42,909 hours, 16,164 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 2819
- Condition: Failed
- Location: Emergency Light
- Part time: 39,022 hours, 14,789 cycles
- 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/YENA%2020110421240

## Discrepancy

ON GROUND MX CHECK - LT EPSU TEST FAILED.  R & R LT EPSU IAW AMM 33-51-38.  OPS CHECK NORMAL.

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