# SDR AU970385

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Cessna 421C
- Registry model: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Engine: Cont GTSIO520L
- Propeller: Mcauly 3FF32C501
- System (JASC): [2822 · Fuel Boost Pump](https://openairdocs.org/jasc/2822)
- Part: Pump
- Part number: 2B729
- Condition: Faulty
- Location: Fuel Boost Pump
- 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/AU970385

## Discrepancy

(AUS) ELECTRICAL BOOST PUMP FAULTY - INVESTIGATION FOUND CHIPPED VANE WHICH CAUSED IMPELLER UNBALANCE AND WEAR TO THE VANES AND PUMP CAVITY

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