# SDR JYDR20200625174

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 2020
- Submitted: June 25, 2020
- Operation: General aviation
- Filed by: [Erickson Incorporated, repair station JYDR439F](https://openairdocs.org/faa-repair-station/JYDR439F/erickson-incorporated.md) (OpenAirDocs)
- Make and model: Skrsky S64E
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Hinge
- Part number: S151023022001
- Part serial: F1768
- Condition: Cracked
- Location: M/R Head
- Part time: 1,314 hours
- Component: Rotor Head, Skrsky
- Component part number: 641020004039
- Stage of operation: IN
- How discovered: M
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/JYDR20200625174

## Discrepancy

MAIN ROTOR HEAD WAS BEING OVERHAULED.  DURING OVERHAUL MAGNETIC PARTICLE INSPECTION TWO VERTICAL HINGES HAD CRACKS IN PIN HOLES. VERTICAL HINGE SN F-1608 AND F-1768.

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