# SDR YENA20151122579

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2015
- Submitted: November 23, 2015
- Operation: Air carrier
- Aircraft: [N903JB](https://openairdocs.org/aircraft/N903JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5783
- Aircraft time: 7,037 hours, 2,096 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 143688
- Condition: Inoperative
- Location: Emergency Lights
- Part time: 7,040 hours, 2,097 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/YENA20151122579

## Discrepancy

EPSU AND BATTERY REMOVAL 15WL AND 11WL.  R & R 15WL EMERGENCY BATTERY AND EPSU IAW AMM 33-51-38.  EPSU BATTERY TEST OK.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.