# SDR YENA2018101240680

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2018
- Submitted: October 12, 2018
- Operation: Air carrier
- Aircraft: [N644JB](https://openairdocs.org/aircraft/N644JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 2880
- Aircraft time: 49,030 hours, 17,397 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321431
- Part serial: 780620
- Condition: Failed
- Location: Cabin
- Part time: 11,524 hours, 4,311 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/YENA2018101240680

## Discrepancy

DURING HEAVY MAINTENANCE, EPSU BATRERY PACKS 10WL, 11WL, 12WL, 13WL FAILED OPERATIONAL CHECK; REF IAC N/R 13147-5802, R&R EPSU BATTERIES IAW AMM TASK 33-51-38-000-002, 33-51-38-400-002 OPS CHECK GOOD. 10WL: P/N OFF & ON 3214-31, S/N OFF 781924, S/N ON 811574 11WL :P/N OFF & ON 3214-31, S/N OFF 052637, S/N ON 838999 12WL : P/N OFF &ON 3214-31, S/N OFF 780620, S/N ON 834596 13WL : P/N OFF &ON 3214-31, S/N OFF 777451, S/N ON 834607.

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