What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
An Experimental ammature built lockwood aircam with twin Rotax 912ULS engines; landed, taxied and had begun a right turn onto taxiway A2. The PIC with his eyes on the taxiway, reached his left hand up then forward to select the fuel boost pump switches to the off position. In doing so, his left sleeve caught the right engine throttle causing it to move forward. The aircraft made an abrupt left turn traveled back across the runway and off to the west side hitting a marker sign and a PAPI light before control of the aircraft was regained.
As the FAA filed it
AN EXPERIMENTAL AMMATURE BUILT LOCKWOOD AIRCAM WITH TWIN ROTAX 912ULS ENGINES; LANDED, TAXIED AND HAD BEGUN A RIGHT TURN ONTO TAXIWAY A2. THE PIC WITH HIS EYES ON THE TAXIWAY, REACHED HIS LEFT HAND UP THEN FORWARD TO SELECT THE FUEL BOOST PUMP SWITCHES TO THE OFF POSITION. IN DOING SO, HIS LEFT SLEEVE CAUGHT THE RIGHT ENGINE THROTTLE CAUSING IT TO MOVE FORWARD. THE AIRCRAFT MADE AN ABRUPT LEFT TURN TRAVELED BACK ACROSS THE RUNWAY AND OFF TO THE WEST SIDE HITTING A MARKER SIGN AND A PAPI LIGHT BEFORE CONTROL OF THE AIRCRAFT WAS REGAINED.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.