What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) While executing a hovering autorotation, the pilot receiving instruction responded to the simulated emergency by applying excessive pitch and a rapid application of throttle. The check airman attempted to retard the throttle to prevent an over torque or an over speed of the rotor and engine. At the instant the rapid increase of pitch and throttle application, the pilot receiving instruction over controlled the aircraft. The check airman was unable to prevent the aircraft from landing hard. The weather was VFR, the aircraft was on a local company flight plan.
As the FAA filed it
(-23) WHILE EXECUTING A HOVERING AUTOROTATION, THE PILOT RECEIVING INSTRUCTION RESPONDED TO THE SIMULATED EMERGENCY BY APPLYING EXCESSIVE PITCH AND A RAPID APPLICATION OF THROTTLE. THE CHECK AIRMAN ATTEMPTED TO RETARD THE THROTTLE TO PREVENT AN OVER TORQUE OR AN OVER SPEED OF THE ROTOR AND ENGINE. AT THE INSTANT THE RAPID INCREASE OF PITCH AND THROTTLE APPLICATION, THE PILOT RECEIVING INSTRUCTION OVER CONTROLLED THE AIRCRAFT. THE CHECK AIRMAN WAS UNABLE TO PREVENT THE AIRCRAFT FROM LANDING HARD. THE WEATHER WAS VFR, THE AIRCRAFT WAS ON A LOCAL COMPANY FLIGHT PLAN.