# SDR CALA2025122112275

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2025
- Submitted: December 22, 2025
- Operation: Air carrier
- Aircraft: [N455UA](https://openairdocs.org/aircraft/N455UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1105
- Aircraft time: 77,558 hours, 31,690 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: EVT3454HC
- Part serial: 3398
- Condition: Faulted
- Location: Zone 100
- Part time: 774,358 hours, 733,303 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025122112275

## Discrepancy

NOISE COMING FROM AVION ICS BAY WITH LIGHT PUNGENT SMELL REQUEST MEL 2126AC APPROVED. MEL 2126AC REJECT TO CLEAR REMOVED AND REPLACED BLOWER FAN PER AMM 21-26-51-400-001-A OPS CHECK GOOD. NO FAULTS FOUND.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.