# SDR DALA2026102005750

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2026
- Submitted: October 20, 2026
- Operation: Air carrier
- Aircraft: [N311DN](https://openairdocs.org/aircraft/N311DN), registered now
- Make and model: Airbus A321-213
- Registry model: [Airbus A321-213](https://openairdocs.org/model/airbus-a321-213) (OpenAirDocs)
- Aircraft serial: 7304
- Aircraft time: 28,117 hours, 13,548 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/DALA2026102005750

## Discrepancy

EMERGENCY LIGHTS AT SEAT ROWS 39,38,37 ABC 35,34,33 ABC, AND 29,28 ABC NOT WORKING.   REPLACED EPSU 13WL AND ASSOCIATED BATTERY PACK PER A321 AMM 33-51. ALL LIGHTS OPERATE NORMAL. (LP 9155838 - AIRCRAFT WAS GROUNDED)

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