# SDR 2010FA0000297

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 7, 2010
- Submitted: April 7, 2010
- Operation: General aviation
- System (JASC): [2822 · Fuel Boost Pump](https://openairdocs.org/jasc/2822)
- Part: Bearing
- Part number: RB56637
- Condition: Failed
- Location: Booster Pump
- Component: Booster Pump, RR12670F
- Component part number: 238006029
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2010FA0000297

## Discrepancy

DURING OVERHAUL OF THE CENTRIFUGAL FUEL BOOSTER PUMP 2 NEW ARMATURE SHAFT BEARINGS (PN: RB56637) WERE INSTALLED. ABOUT AN HOUR INTO THE BRUSH RUN-IN SEQUENCE, AN UNUSUAL NOISE WAS HEARD. THE NOISE WAS TRACED TO THE 2 NEWLY REPLACED BRGS. THE BRGS WERE SUBSEQUENTLY REMOVED FROM THE PUMP AND FOUND TO HAVE SOME ROUGHNESS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.