AAIB investigation to Robinson R44 Clipper I, G-CLIO

Hard landing in field, private landing site, Holmfirth, West Yorkshire, 17 December 2020.

From:: Air Accidents Investigation Branch
Published: 8 July 2021

Category:: General aviation - rotorcraft
Report type:: Bulletin - Field investigation
Date of occurrence:: 17 December 2020
Aircraft type:: Robinson R44 Clipper I
Location:: Private landing site, Holmfirth, West Yorkshire
Registration:: G-CLIO

Summary:

A downwind 鈥榦ut-of-ground-effect鈥� transition resulted in overpitching of the main rotor. The subsequent reduction of rotor rpm caused a rapid increase in descent rate and a loss of tail rotor authority. The pilot was unable to react in time to prevent a turning, descending flight path and the helicopter impacted the ground causing substantial damage.

Safety Sense Leaflet 17 鈥� 鈥楬elicopter Airmanship鈥�, published by the CAA and Safety Notice SN-42 鈥� 鈥楻44 Pilot鈥檚 Operating Handbook鈥�, published by the Robinson Helicopter Company contain relevant safety advice to prevent this type of accident. A safety course is also available from the Robinson Helicopter Company for rated pilots.

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