r22 rollover
From the Ananova news website:
Two escape as frost downs helicopter
Two men have narrowly escaped injury after a helicopter toppled over on take-off because part of its undercarriage was frozen to the ground.
The privately-owned R22 helicopter was attempting to take-off from Gamston, Nottingham.
A spokeswoman for Nottinghamshire Police says the two occupants were not seriously injured, but one was taken to Bassetlaw District General Hospital, suffering from shock.
The spokeswoman said: "In trying to take off one of the helicopter pads was frozen to the ground. This caused the helicopter to topple over. There are no serious injuries to the two men inside."
Fire crews went to the scene and air investigators informed, the spokeswoman added.