# SDR YENA201706010441

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 2017
- Submitted: June 5, 2017
- Operation: Air carrier
- Aircraft: [N905JB](https://openairdocs.org/aircraft/N905JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5854
- Aircraft time: 12,403 hours, 3,918 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321431
- Part serial: 765566
- Condition: Failed
- Location: Emergency Light
- Part time: 12,411 hours, 3,918 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/YENA201706010441

## Discrepancy

DURING HEAVY MAINTENANCE, EPSU 11WL FAILED FUNCTIONAL CHECK DURING ROUTINE MAINTENANCE.   R & R THE BATTERY IAW AMM 33-51-38-000-002-A.  OPS CHECKED GOOD IAW 33-51-00-710-004-A.

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