Alternatively...
The helicopter lifted from the helipad into a hover at 1924 hrs, and hover-taxied to the middle of the paddock where it came to the hover again; the pitch attitude in the hover was slightly nose-up. The helicopter then began to climb, almost vertically at first. At a height of approximately 32 ft agl, its pitch attitude changed from the slightly nose-up hover attitude, pitching nose-down, before the helicopter began picking up forward speed, continuing to climb.
At about 120 ft above the ground and with a nose-down pitch attitude of approximately 15°, the co-pilot said “nose down [commander’s first name]”. It could not be determined from the recorded voice whether this was to highlight the nose-down pitch attitude or a prompt for more nose-down pitch, but more forward cyclic input was applied. In the following second the helicopter crossed the boundary trees and started to descend with increasing ground speed, forward cyclic input and nose-down pitch attitude. Progressively more collective was also being applied, with the resultant increase in engine torques.
The co-pilot repeated the “nose down” words; again it could not be determined whether it was an observation or a request and again a nose-down input was made. The cyclic inputs, whilst still in the forward sense became more erratic, with one aft input recorded in the nal seconds. The nose-down pitch attitude started to reduce from the peak recorded value of 35° as the helicopter descended through 100 ft agl. The collective input progressed to 100%, the engine torques increased but the rotor speed could not be sustained at the nominal 102% and started to reduce. The last nose-down pitch attitude recorded by the combined voice and ight data recorder (CVFDR) was 25° with the helicopter 82 ft above the ground, descending at 2,400 ft/min, with a ground speed of 90 kt.
The helicopter impacted a line of large hay bales lying across a eld. The cabin structure was destroyed and all the occupants were fatally injured in the impact sequence.
http://https://assets.publishing.ser...LBAL_10-15.pdf