What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
During the takeoff roll, approximately 1000 feet down runway 24 (runway length is 3,605 feet), the pilot aborted the takeoff at approximately 75-80 knots ground speed (rotation is at 85 knots normally), due to the pilot's feeling that the engines were not at full power. The aircraft did not become airborne. The pilot pulled back on both throttles and applied brakes. There is evidence of braking at approximately 2000 feet from the beginning of the runway as reflected in skid marks caused by both the main landing gear tires. The aircraft could not stop prior to the end of the runway and subsequently departed it, striking a runway light, causing minor damage to one of the right propeller blades and runway light. The aircraft came to a halt approximately 200 feet past the end of the runway in tall grass and muddy terrain. The pilot then turned the aircraft around and taxied back to the terminal area. The runway conditions were dry.
As the FAA filed it
DURING THE TAKEOFF ROLL, APPROXIMATELY 1000 FEET DOWN RUNWAY 24 (RUNWAY LENGTH IS 3,605 FEET), THE PILOT ABORTED THE TAKEOFF AT APPROXIMATELY 75-80 KNOTS GROUND SPEED (ROTATION IS AT 85 KNOTS NORMALLY), DUE TO THE PILOT'S FEELING THAT THE ENGINES WERE NOT AT FULL POWER. THE AIRCRAFT DID NOT BECOME AIRBORNE. THE PILOT PULLED BACK ON BOTH THROTTLES AND APPLIED BRAKES. THERE IS EVIDENCE OF BRAKING AT APPROXIMATELY 2000 FEET FROM THE BEGINNING OF THE RUNWAY AS REFLECTED IN SKID MARKS CAUSED BY BOTH THE MAIN LANDING GEAR TIRES. THE AIRCRAFT COULD NOT STOP PRIOR TO THE END OF THE RUNWAY AND SUBSEQUENTLY DEPARTED IT, STRIKING A RUNWAY LIGHT, CAUSING MINOR DAMAGE TO ONE OF THE RIGHT PROPELLER BLADES AND RUNWAY LIGHT. THE AIRCRAFT CAME TO A HALT APPROXIMATELY 200 FEET PAST THE END OF THE RUNWAY IN TALL GRASS AND MUDDY TERRAIN. THE PILOT THEN TURNED THE AIRCRAFT AROUND AND TAXIED BACK TO THE TERMINAL AREA. THE RUNWAY CONDITIONS WERE DRY.