What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Acft crashed on landing and sustained substantial damage, other circumstances are unknown. (-23) 1658M, B75-E75, landed marstons Mills runway 27 (grass strip) at 1810 with it's brakes on. The aircraft nosed over onto it's back, no injuries to the two "pilots" onboard. The "passenger/pilot" was on the controls following the pilot (PIC) throughout the landing sequence, but had his feet on the "toe-brakes" causing the aircraft to flip over onto it's back during he landing sequence. The substantial damage was caused to the propeller, engine, engine mount, engine firewall, vertical stabilizer, rudder, and the "n" wing struts.
As the FAA filed it
ACFT CRASHED ON LANDING AND SUSTAINED SUBSTANTIAL DAMAGE, OTHER CIRCUMSTANCES ARE UNKNOWN. (-23) 1658M, B75-E75, LANDED MARSTONS MILLS RUNWAY 27 (GRASS STRIP) AT 1810 WITH IT'S BRAKES ON. THE AIRCRAFT NOSED OVER ONTO IT'S BACK, NO INJURIES TO THE TWO "PILOTS" ONBOARD. THE "PASSENGER/PILOT" WAS ON THE CONTROLS FOLLOWING THE PILOT (PIC) THROUGHOUT THE LANDING SEQUENCE, BUT HAD HIS FEET ON THE "TOE-BRAKES" CAUSING THE AIRCRAFT TO FLIP OVER ONTO IT'S BACK DURING HE LANDING SEQUENCE. THE SUBSTANTIAL DAMAGE WAS CAUSED TO THE PROPELLER, ENGINE, ENGINE MOUNT, ENGINE FIREWALL, VERTICAL STABILIZER, RUDDER, AND THE "N" WING STRUTS.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.