# SDR CALA2025112111392

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 20, 2025
- Submitted: November 21, 2025
- Operation: Air carrier
- Aircraft: [N14512](https://openairdocs.org/aircraft/N14512), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 11953
- Aircraft time: 4,291 hours, 1,526 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 131699
- Condition: No Test
- Location: Zone 200
- Part time: 4,289 hours, 1,525 cycles
- 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/CALA2025112111392

## Discrepancy

ESPU FIN 10WL FAILED ESPU SYSTEM TEST IAW TASK 33-51-00-710-001-A,  FAILED ESPU SYSTEM TEST IAW TASK 33-51-00-710-001-A.   REPLACED POWER SUPPLY  10WL IAW AMM 31-51-38-000-001-A,  ACP EPSU BITE TEST, NO FAULTS.

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