# SDR DALA2026021100965

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2026
- Submitted: February 11, 2026
- Operation: Air carrier
- Aircraft: [N534DT](https://openairdocs.org/aircraft/N534DT), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 11357
- Aircraft time: 11,619 hours, 2,870 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026021100965

## Discrepancy

AORCRAFT 5034, FOUND EPSU BATTERY PWR SUPPLY INOP WHILE WORKING W/C #3351-2991. CORRECTIVE ACTION: REPLACED EMERGENCY BATTERY PWR SUPPLY (16WL) PER A321 AMM 3351. TEST OK. (LP 8449770)

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