# SDR 97ZZZX3507

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 17, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N205UC
- Make and model: Bolkms BO105CBS
- Aircraft serial: S668
- System (JASC): [6230 · Main Rotor Mast/Swashplate](https://openairdocs.org/jasc/6230)
- Part: Mast
- Part number: 4638205005
- Condition: Cracked
- Location: Transmission
- Part time: 3,886 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/97ZZZX3507

## Discrepancy

MAST FOUND CRACKED AT WEBBING BETWEEN BOLT HOLES.  REPLACED MAST WITH OVERHAULED ASSY, S/N 913.

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