# SDR HDNA202004149494

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2020
- Submitted: May 14, 2020
- Operation: Air carrier
- Aircraft: [N145CH](https://openairdocs.org/aircraft/N145CH), registered now
- Make and model: Bolkms BK117C2
- Aircraft serial: 9228
- Aircraft time: 5,367 hours, 13,097 cycles
- System (JASC): [6210 · Main Rotor Blades](https://openairdocs.org/jasc/6210)
- Part: Attach Bolt
- Part number: B621M1061202
- Part serial: 520
- Condition: Sheared
- Location: M/R Blade
- Part time: 5,367 hours, 13,097 cycles
- Component: Main Rotor Head, Bolkms
- Component part number: B673M40A1002
- 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/HDNA202004149494

## Discrepancy

GREEN M/R BLADE SECONDARY ATTACHMENT BOLT HEAD (ONLY) WAS FOUND SHEARED ON THE TECHNICIAN'S DAILY AIRWORTHINESS CHECK. INSPECTION WAS PERFORMED ON THE REMAINING SECONDARY BOLTS WITH NO DEFECTS NOTED.

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