# SDR DALA2026102005749

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2026
- Submitted: October 20, 2026
- Operation: Air carrier
- Aircraft: [N316DN](https://openairdocs.org/aircraft/N316DN), registered now
- Make and model: Airbus A321-213
- Registry model: [Airbus A321-213](https://openairdocs.org/model/airbus-a321-213) (OpenAirDocs)
- Aircraft serial: 7327
- Aircraft time: 29,530 hours, 13,544 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Faulted
- 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/DALA2026102005749

## Discrepancy

DURING SERVICE CHECK NOTICED MULTIPLE ISLE EMERGENCY LIGHT INOP.   REPLACED EPSU (15WC) OPS CHECK GOOD REF A321 AMM 33-51, AND EPSU BATTERY REF A321 AMM 33-51. OPS CHECK GOOD. REPLACED ROW 28 EEPMS REF. A321 AMM 25-21. (LP 9557621 - AIRCRAFT WAS GROUNDED)

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