What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) After preflight checks in the runup are, pilot added throttle to begin taxi for takeoff. Pilot and front seat passenger stated that the engine roared to life at which time the aircraft "got away" from the pilot. The plane traveled about 100 feet prior to chewing through a 6 foot chain link fence, through a small depression, and back up onto a paved parking lot, where it came to rest. The pilot-in-command stated the engine did not respond to control inputs. The aircraft is equipped with a hand brake and special foot rests on rudder pedals due to the pilot's limited use of his lower legs. Inspection of the aircraft found the throttle, prop, and mixture controls fully foward. All control linkages were checked for continuity, all operated normally.
As the FAA filed it
(-23) AFTER PREFLIGHT CHECKS IN THE RUNUP ARE, PILOT ADDED THROTTLE TO BEGIN TAXI FOR TAKEOFF. PILOT AND FRONT SEAT PASSENGER STATED THAT THE ENGINE ROARED TO LIFE AT WHICH TIME THE AIRCRAFT "GOT AWAY" FROM THE PILOT. THE PLANE TRAVELED ABOUT 100 FEET PRIOR TO CHEWING THROUGH A 6 FOOT CHAIN LINK FENCE, THROUGH A SMALL DEPRESSION, AND BACK UP ONTO A PAVED PARKING LOT, WHERE IT CAME TO REST. THE PILOT-IN-COMMAND STATED THE ENGINE DID NOT RESPOND TO CONTROL INPUTS. THE AIRCRAFT IS EQUIPPED WITH A HAND BRAKE AND SPECIAL FOOT RESTS ON RUDDER PEDALS DUE TO THE PILOT'S LIMITED USE OF HIS LOWER LEGS. INSPECTION OF THE AIRCRAFT FOUND THE THROTTLE, PROP, AND MIXTURE CONTROLS FULLY FOWARD. ALL CONTROL LINKAGES WERE CHECKED FOR CONTINUITY, ALL OPERATED NORMALLY.