# SDR 2025FA0000704

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2025
- Submitted: October 10, 2025
- Operation: General aviation
- Aircraft: [N3040K](https://openairdocs.org/aircraft/N3040K), registered now
- Make and model: Robsin R22BETAII
- Aircraft serial: 4165
- Aircraft time: 10,662 hours
- Engine: Lyc O360J2A
- Engine time: 10,068 hours
- System (JASC): [6210 · Main Rotor Blades](https://openairdocs.org/jasc/6210)
- Part: Bearing
- Part number: A1593
- Condition: Brinelled
- Location: M/R Spindle
- Part time: 120 hours
- Component: Spindle, Robsin, R22BETAII
- Component part number: A1583
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2025FA0000704

## Discrepancy

FOUND BOTH SPINDLE BEARING SETS P/N A159-3. TSN: 120.1, BRINELLED

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