The recent EC225 helicopter crash in Norway happened when the main rotor fell off at 2000 feet ASL. The main culprit was the main rotor gearbox which failed.
That same gearbox was in a truck which had a serious accident several months before. The gearbox was inspected and re-certified by the manufacturer before being installed on the EC225. There is a significant chance that the truck crash was a significant contributor to the gearbox failure.
So, I would be very hesitant using that engine in an aircraft. A drop can cause unanticipated failures.