# SDR YENA20140523099

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2014
- Submitted: May 23, 2014
- Operation: Air carrier
- Aircraft: [N629JB](https://openairdocs.org/aircraft/N629JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 2580
- Aircraft time: 33,929 hours, 12,006 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 321431
- Part serial: 095182
- Condition: Failed
- Location: Emergency Lights
- Part time: 14,517 hours, 5,149 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L, J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA20140523099

## Discrepancy

DURING MODIFICATION, IT WAS DISCOVERED THE EMERGENCY LIGHT FAILED MESSAGE EPSU BATTERY RT ILLUMINATED.  R & R 12WL EPSU BATTERY IAW AMM 33-51-38-000-002-A AND 33-51-38-710-052 B STEP (1).  OPS CHECKED NORMAL.

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