# SDR DALA2026052903264

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2026
- Submitted: May 29, 2026
- Operation: Air carrier
- Aircraft: [N386DN](https://openairdocs.org/aircraft/N386DN), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 8947
- Aircraft time: 21,309 hours, 9,017 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: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026052903264

## Discrepancy

DURING L4 DOOR SLIDE CHANGE. EPSU SYS TEST GOT EPSU (10WL) FWD L MSG.   REPLACED EPSU FWD L BATTERY PER A321 AMM 33-51 OPS CHK NML. (LP 8568973 - AIRCRAFT WAS GROUNDED)

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