# SDR 2002F00105

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2001
- Submitted: February 11, 2002
- Operation: Air carrier
- Aircraft: [N157AC](https://openairdocs.org/aircraft/N157AC), registered now
- Make and model: Skrsky S64F
- Aircraft serial: 64065
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Support
- Part number: 643520026012
- Part serial: 33
- Condition: Cracked
- Location: M/R Gearbox
- Part time: 1,296 hours
- Component: Gearbox, Skrsky
- Component part number: 643520400058
- Stage of operation: IN
- How discovered: D
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002F00105

## Discrepancy

3 CRACKS WERE FOUND IN LOWER SUPPORT OF MAIN ROTOR GEARBOX.

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