# SDR YENA2020013060071

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2020
- Submitted: January 30, 2020
- Operation: Air carrier
- Aircraft: [N957JB](https://openairdocs.org/aircraft/N957JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6809
- Aircraft time: 17,901 hours, 5,805 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321431
- Part serial: 816094
- Condition: Failed
- Location: 14wl-Batt
- Part time: 8,642 hours, 2,798 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/YENA2020013060071

## Discrepancy

EPSU BATTERY 15WL AND 14WL FAILED A CAPACITY CHECK.   R & R EPSU BATTERIES AT 15WL AND 14WL IAW AMM 33-51-38OPS TEST GOOD.

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