# SDR UNFR2011040200001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 29, 2011
- Submitted: April 2, 2011
- Operation: General aviation
- Aircraft: [N417MC](https://openairdocs.org/aircraft/N417MC), registered now
- Make and model: Bolkms BK117B2
- Aircraft serial: 7150
- Aircraft time: 12,479 hours
- Engine: Lyc LTS101*
- System (JASC): [6230 · Main Rotor Mast/Swashplate](https://openairdocs.org/jasc/6230)
- Part: Swashplate
- Part number: 11741904
- Part serial: 1094
- Condition: Out Of Adjust
- Location: Main Rotor
- Part time: 10,158 hours
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UNFR2011040200001

## Discrepancy

PREFORMING GROUND RUNS AND BALANCING OF M/R BLADES AND ON ADJUSTING OF LINKS FOUND PLAY IN THE SWASHPLATE ASSY.  REMOVED SWASHPLATE AND RETURNED TO VENDOR WHERE PREVIOUSLY REPAIRED UNIT.  THERE A SHIMMING WASHER WAS DISCOVERED MISSING.

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