# SDR USAAF99033

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N862US
- Make and model: Fokker F.28 MK 0100
- Registry model: [Fokker F.28 MK 0100](https://openairdocs.org/model/fokker-f-28-mk-0100) (OpenAirDocs)
- Aircraft serial: 11300
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Condition: Failed
- Location: Cockpit
- Stage of operation: CL
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAAF99033

## Discrepancy

PIT - FL 591 - ON CLIMB-OUT FROM PIT, CREW NOTED SMOKE COMING FROM BEHIND THE GLARESHIELD.  FLIGHT RETURNED TO PIT AND LANDED WTIH NO FURTHER INCIDENT.  MAINTENANCE COULD NOT FIND A DEFINITIVE PROBLEM.  BLOWER FAN NR 3 WAS NOTED AS HAVING SOME VIBRATION, AND WAS CHANGED AS A PRECAUTION.  (X)

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