# SDR 8HBR20210920032

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 2021
- Submitted: September 27, 2021
- Operation: General aviation
- Filed by: [Hillsboro Aero Academy LLC, repair station 8HBR698C](https://openairdocs.org/faa-repair-station/8HBR698C/hillsboro-aero-academy-llc.md) (OpenAirDocs)
- Aircraft: [N351JD](https://openairdocs.org/aircraft/N351JD), registered now
- Make and model: Robsin R22BETA
- Aircraft serial: 2707
- Aircraft time: 10,170 hours
- System (JASC): [6210 · Main Rotor Blades](https://openairdocs.org/jasc/6210)
- Part: Bearing
- Part number: A1583
- Part serial: 17711772
- Condition: Brinelled
- Location: Spindle
- Part time: 164 hours
- Component: Blade, Robsin
- Component part number: A0166
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/8HBR20210920032

## Discrepancy

PILOT'S REPORTING NEEDING TO USE A SIGNIFICANT INCREASE OF PRESSURE ON CYCLIC FOR FORWARD FLIGHT. ALSO NOTED LOSS OF CYCLIC PRESSURE WHEN PREFORMING AUTOROTATION'S. BRINELLING FOUND ON SPINDLE BEARINGS. POSSIBLE MANUFACTURER INSTALLATION ERROR FROM ROBINSON.

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