# SDR DALA2020111203704

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 8, 2020
- Submitted: November 12, 2020
- Operation: Air carrier
- Aircraft: [N356DN](https://openairdocs.org/aircraft/N356DN), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 8279
- Aircraft time: 6,157 hours, 2,677 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- 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/DALA2020111203704

## Discrepancy

DURING SERVICE CHECK, FOUND EPSU BATTERY FAULT.  LOCATION 10WL, FWD LEFT.  CORRECTIVE ACTION: REMOVED AND REPLACED BATTERY PACK AT LOCATION 10WL.  BITE TEST NO FAULTS NOTED, REF A321 AMM 33-51.

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