# SDR 99ZZZX4677

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 28, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N198H](https://openairdocs.org/aircraft/N198H), registered now
- Make and model: Bell 206B-3
- Registry model: [Bell 206B-3](https://openairdocs.org/model/bell-helicopter-textron-206b-3) (OpenAirDocs)
- Aircraft serial: 3647
- System (JASC): [2822 · Fuel Boost Pump](https://openairdocs.org/jasc/2822)
- Part: Boost Pump
- Part number: 1C274
- Condition: Failed
- Location: Fuel System
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX4677

## Discrepancy

HORIZON HELICOPTERS HAD NOTICED FUEL CONTAMINATION AFTER A BOOST PUMP FAILURE ON 4 OCCASIONS.  THE FILTER IS FULL OF BLACK CARBON.  SUBMITTER BELIEVES THE BOOST PUMP INTERNAL BREAKDOWN IS THE SOURCE OF CONTAMINATION AND HAS SAMPLE PUMP AND FILTER AT FACILITY FROM THIS AIRCRAFT.

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