# SDR DALA2025081206009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2025
- Submitted: August 12, 2025
- Operation: Air carrier
- Aircraft: [N111DC](https://openairdocs.org/aircraft/N111DC), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 10018
- Aircraft time: 14,978 hours, 6,694 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- 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/DALA2025081206009

## Discrepancy

AIRCRAFT 1011, DURING CIDS EPSU TEST FOUND FAULT EXTERIOR LT 2/EPSU (13WL) AFT L ATA 256241 CLASS 1. CORRECTIVE ACTION: CYCLED A/C PWR. C/W CIDS PWR UP TEST & OPS TEST OF EPSU PER A321 AMM'S 23-73-00 & 33-51-00, OPS TEST GOOD, NO FAULTS. (LP 7357565)

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