# SDR AALA201811239020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2018
- Submitted: November 23, 2018
- Operation: Air carrier
- Aircraft: [N928AM](https://openairdocs.org/aircraft/N928AM), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7515
- Aircraft time: 5,857 hours, 2,243 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Faulted
- Location: Cabin
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201811239020

## Discrepancy

THE AIRCRAFT WAS NOT GROUNDED. PERFORMED EPSU SYSTEM TEST PER SIC PS FOUND BATTERY/EPSU FORWARD LEFT CLASS 1 FAULT.  REPLACED EPSU BATTERY PER 33-51-38. OPERATIONS CHECK NORMAL.

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