# SDR EIAA970193

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N471EV](https://openairdocs.org/aircraft/N471EV), registered now
- Make and model: Boeing 747273C
- Aircraft serial: 20651
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: 6054573
- Condition: Failed
- Location: Cockpit
- Part time: 71,566 hours
- Stage of operation: NR
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EIAA970193

## Discrepancy

HKG - LOG PAGE:  F17424 - NR 1 RECIRCULATING FAN MAKING NOISE.  FILLED COCKPIT WITH SMOKE.  REMOVED AND REPLACED NR 1 RECIRCULATING FAN IAW MM 21-25-01, OPS NORMAL.  (X)

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