# SDR DALA2020100603301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2020
- Submitted: October 6, 2020
- Operation: Air carrier
- Aircraft: [N340DN](https://openairdocs.org/aircraft/N340DN), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 8180
- Aircraft time: 7,919 hours, 3,498 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Failed
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020100603301

## Discrepancy

DURING EPSU SYSTEM TEST GOT CLASS 1 BAT/EPSU (15WL) MID LAV FAULT.  CORRECTIVE ACTION: REMOVED AND REPLACED BATTERY 15WL, PER A321 AMM 33-51.  EPSU TEST PASSED.  OPERATIONS CHECK GOOD.

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