# SDR AALA20161202018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 1, 2016
- Submitted: December 2, 2016
- Operation: Air carrier
- Aircraft: [N151AN](https://openairdocs.org/aircraft/N151AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6840
- Aircraft time: 3,527 hours, 1,365 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 321431
- Part serial: 765180
- Condition: No Test
- Location: Emergency Lights
- 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/AALA20161202018

## Discrepancy

EMERGENCY EXIT LIGHTS FORWARD LEFT 10WL EMERGENCY POWER SUPPLY UNIT FAILED TEST.  REMOVED AND REPLACED THE BATTERY PACK IAW AMM 33-51-38.  OPS CHECKED GOOD.

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