# SDR DALA2019102856216

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2019
- Submitted: October 28, 2019
- Operation: Air carrier
- Aircraft: [N339DN](https://openairdocs.org/aircraft/N339DN), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 8128
- Aircraft time: 5,426 hours, 2,391 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Faulted
- 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/DALA2019102856216

## Discrepancy

EMERGENCY LIGHT CHECK - EPSU AFT LEFT BATT FAULT, REPLACED EPSU 13WL BATTERY

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