# SDR AUS20031225

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 2, 2003
- Submitted: January 5, 2004
- Operation: General aviation
- Make and model: Robsin R44
- Engine: Lyc O540F1B5
- System (JASC): [1430 · Fasteners](https://openairdocs.org/jasc/1430)
- Part: Bolt
- Part number: NAS660531
- Condition: Mismanufactured
- Location: M/R Swashplate
- Part time: 435 cycles
- 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/AUS20031225

## Discrepancy

(AUS) MAIN ROTOR SWASHPLATE LOWER BOLT DAMAGED.  INVESTIGATION FOUND A FLAT SPOT ON THE BLADE SHANK.  SUSPECT MANUFACTURING ERROR AS FLAT SPOT HAD BEEN CADMIUM PLATED.  FOUND DURING INSPECTION IAW AD/R44/20.

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