# SDR DALA2025110508069

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 5, 2025
- Submitted: November 5, 2025
- Operation: Air carrier
- Aircraft: [N302DN](https://openairdocs.org/aircraft/N302DN), registered now
- Make and model: Airbus A321-213
- Registry model: [Airbus A321-213](https://openairdocs.org/model/airbus-a321-213) (OpenAirDocs)
- Aircraft serial: 7031
- Aircraft time: 27,956 hours, 13,845 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: No Test
- 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/DALA2025110508069

## Discrepancy

DURING SVC CHECK, FOUND MULTIPLE PATHWAY EMERGENCY LIGHTS OUT IN AFT CABIN. BITE TEST FAULTED EPSU (11WL).   REPLACED 11WL EMERGENCY POWER SUPPLY UNIT, REF A321 AMM 33-51. OPS CHECK GOOD. (LP 7659343)

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