Oh boy...... I can see another one of these debates coming up
There shouldn't be, for this part of the World anyway;
FCL.010 – Definitions
‘Flight Time Helicopters’ means from the moment a helicopter’s rotor blades start turning until the moment the helicopter comes to rest at the end of the flight, and the blades are stopped.
http://www.caa.co.uk/docs/2330/EASA%...02012%20v1.pdf