# SDR HEEA0015050

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N724MB](https://openairdocs.org/aircraft/N724MB), registered now
- Make and model: Bolkms BO105S
- Aircraft serial: S756
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Sun Gear
- Part number: 4638304001
- Condition: Spalled
- Location: Transmission
- Part time: 426 hours
- Component: 4638001004
- 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/HEEA0015050

## Discrepancy

TRANSMISSION CAME IN DUE TO METAL IN OIL.  REPLACED SUN GEAR.

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