# SDR GUR2001F00001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2001
- Submitted: October 31, 2001
- Operation: Air carrier
- Aircraft: N9937K
- Make and model: Bell 212
- Registry model: [Bell 212](https://openairdocs.org/model/bell-212) (OpenAirDocs)
- Aircraft serial: 30778
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Pitch Horn
- Part number: 2040111219
- Part serial: JJL32017
- Condition: Out Of Tolerance
- Location: M/R Hub
- Part time: 8,939 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GUR2001F00001

## Discrepancy

DURING INSPECTION OF THE MAIN ROTOR GRIP PITCH HORN TO GRIP COUNTER BORES,  MEASURED THE BORES USING A TELESCOPING GAUGE AND MICROMETER.

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