Have browsed through the flight manual but still require further clarification on this one.
The hydraulic pump on the aircraft IS NOT mounted on the MR transmission assembly.
The hydraulic pump IS mounted on the lower left of the accessory case at the bottom of the engine and is therefore engine driven.
So with this system during autorotative flight (following a total engine failure ie crankshaft motionless) the pump is no longer being driven and all hydraulics are also lost.
Logical to me.
Yes or No?