# SDR 98UAL900453

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N419UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 487
- Engine: Iae V2527A5
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Condition: Failed
- Location: E & E Compt
- Component: Technofan  S, EVT3454G
- Stage of operation: CR
- Nature of condition: B, E, J
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98UAL900453

## Discrepancy

HIGH PITCH VIBRATION UNDER FLIGHT DECK FLOOR.  ACRID SMOKE SMELL AND ECAM MESSAGE FOR AVIONICS BLOWER FAULT.  SWITCHED TO OVERRIDE POSITION.  VIBRATION AND SMOKE CLEARED.  *S/D*  VIBRATION WAS CAUSED BY THE AVIONICS COOLING FAN.  VIBRATION AND SMOKE CLEARED AFTER COOLING FAN REPLACEMENT.

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