Incident Overview
During a flight, the pilot conducted an approach followed by a go-around. After turning onto the downwind leg, the pilot moved the landing gear selector to the down position. However, the landing gear did not extend when using either the normal hydraulic system or the emergency hand pump. The aircraft subsequently landed on a grass strip with the landing gear in an intermediate position.
Investigation Findings
An investigation revealed that a hydraulic, gear down, hose assembly, part number S2178-4-0102, had failed. This failure resulted in a loss of hydraulic fluid. Reportedly, the hose was an original component that had accumulated 1,208 flight hours of usage.
Impact and Condition
The aircraft touched down on the grass strip with the landing gear partially extended. The specific extent of any damage to the aircraft, if any, is not mentioned in the source. No details regarding occupants, injuries, or the aircraft's type or registration are provided.
Conclusion
The sole identified cause of the landing gear malfunction was the failure of the hydraulic hose assembly, leading to hydraulic fluid loss and inability to fully extend the gear.