# SDR CALA2025021302312

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2025
- Submitted: February 13, 2025
- Operation: Air carrier
- Aircraft: [N480UA](https://openairdocs.org/aircraft/N480UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1555
- Aircraft time: 64,872 hours, 28,201 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: EVT3454HC
- Part serial: 3645
- Condition: Failed
- Location: Zone 100
- Part time: 712,397 hours, 5,824 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025021302312

## Discrepancy

BLOWER FAULT WITH POPPED BLOWER  CB. FOUND AVIOUCS VENT BLOWER CB AD10 POPPED AND WOULD NOT RESET . POST FLIGHT REPORT SHOWED BLOWER FAN 20 HQ FAULT . FAN HAD BURNT ELECTRONICS SMELL.REPLACED BLOWER FAN 20HQ.  OPS AND LEAK CHECK GOOD. PARTS USED:  31-2126-9-9004,QTY :1  1421646,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1421646  SN OFF 3545 IPC REFERENCE # IPC 21-26-01-08  FAN, AVIONICS F  OFF 31-2126-9-9004 3645 ON 31-2126-9-9004 4373 REMOVED AND  REPLACED BLOWER FAN PER  AMM TASK 21-26-51-400-001-A. OPS AND LEAK CHECK GOOD.

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