Robinson R44 Raven crash near Cumbernauld Airport, North Lanarkshire, United Kingdom

After lifting to a hover, the pilot reversed his helicopter, unaware that a second Robinson R44, G-HYND, had landed behind his position and was being shut down. One of G-HYND's rotor blades collided with G-CTFL's engine housing, startling the pilot, with the result that he lost control, and the helicopter struck the ground several times before coming to rest in a tail-down attitude, next to a parked Robinson R22. Safety action has been taken by the helicopter operator to improve the helipad arrangement, procedures and RFFS response.