# SDR DALA2018102506324

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 24, 2018
- Submitted: October 28, 2018
- Operation: Air carrier
- Aircraft: [N312DN](https://openairdocs.org/aircraft/N312DN), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 7364
- Aircraft time: 5,570 hours, 3,108 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Faulted
- Location: Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2018102506324

## Discrepancy

DURING EMERGENCY LIGHT TEST NOTED FAULT ON EPSU (11WL). REPLACED BATTERY.

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