What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: pilot/cfi contacted NTSB with report of inflight accident. Aircraft windshield failed and entered cockpit, pilot also suspects structural wing damage due to aircraft overspeed. Physical inspection of aircraft revealed no obvious structural damage to wings or fuselage. Upper 6" of windshield separated from remaining windshield assembly. No other damage noted. Interview with pilot revealed that during demonstration of "out of trim" effects to student pilot, aircraft entered a steep descent of approximately 70 degrees vertical @ 2500' AGL. Pilot stated aircraft would not respond to nose up control input. Aircraft returned to parkersburg, WV, without further incident or flight control difficulties. Maintenance inspection revealed flight control system meets manufacturers specifications. Pilot stated he believes student pilot panicked when aircraft pitched over and held control wheel in nose down position and finally released after coaxing from CFI, no overspeed was experienced. NTSB was advised the matter is considered an incident. Matter considered closed.
As the FAA filed it
NARRATIVE: PILOT/CFI CONTACTED NTSB WITH REPORT OF INFLIGHT ACCIDENT. AIRCRAFT WINDSHIELD FAILED AND ENTERED COCKPIT, PILOT ALSO SUSPECTS STRUCTURAL WING DAMAGE DUE TO AIRCRAFT OVERSPEED. PHYSICAL INSPECTION OF AIRCRAFT REVEALED NO OBVIOUS STRUCTURAL DAMAGE TO WINGS OR FUSELAGE. UPPER 6" OF WINDSHIELD SEPARATED FROM REMAINING WINDSHIELD ASSEMBLY. NO OTHER DAMAGE NOTED. INTERVIEW WITH PILOT REVEALED THAT DURING DEMONSTRATION OF "OUT OF TRIM" EFFECTS TO STUDENT PILOT, AIRCRAFT ENTERED A STEEP DESCENT OF APPROXIMATELY 70 DEGREES VERTICAL @ 2500' AGL. PILOT STATED AIRCRAFT WOULD NOT RESPOND TO NOSE UP CONTROL INPUT. AIRCRAFT RETURNED TO PARKERSBURG, WV, WITHOUT FURTHER INCIDENT OR FLIGHT CONTROL DIFFICULTIES. MAINTENANCE INSPECTION REVEALED FLIGHT CONTROL SYSTEM MEETS MANUFACTURERS SPECIFICATIONS. PILOT STATED HE BELIEVES STUDENT PILOT PANICKED WHEN AIRCRAFT PITCHED OVER AND HELD CONTROL WHEEL IN NOSE DOWN POSITION AND FINALLY RELEASED AFTER COAXING FROM CFI, NO OVERSPEED WAS EXPERIENCED. NTSB WAS ADVISED THE MATTER IS CONSIDERED AN INCIDENT. MATTER CONSIDERED CLOSED.