What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Pilot privacy data omitted stated that the aircraft nosed over on landing due to his over-application of brakes during the landing rollout. He landed N357SC short of the threshold of the runway, in order to eliminate the need for back-taxiing to pick up another glider tow. The area short of the runway threshold consists of gravel. Thus, when the airplane reached the paved surface of the runway- under heavy braking - the main tires suddenly "bit in" to the pavement causing the airplane to nose over.
As the FAA filed it
PILOT ^PRIVACY DATA OMITTED^ STATED THAT THE AIRCRAFT NOSED OVER ON LANDING DUE TO HIS OVER-APPLICATION OF BRAKES DURING THE LANDING ROLLOUT. HE LANDED N357SC SHORT OF THE THRESHOLD OF THE RUNWAY, IN ORDER TO ELIMINATE THE NEED FOR BACK-TAXIING TO PICK UP ANOTHER GLIDER TOW. THE AREA SHORT OF THE RUNWAY THRESHOLD CONSISTS OF GRAVEL. THUS, WHEN THE AIRPLANE REACHED THE PAVED SURFACE OF THE RUNWAY- UNDER HEAVY BRAKING - THE MAIN TIRES SUDDENLY "BIT IN" TO THE PAVEMENT CAUSING THE AIRPLANE TO NOSE OVER.