What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
When the pilot rotated the aircraft for take-off, the landings gear retracted and the aircraft settled back on to the runway. The aircraft came to rest about 1800 feet down the runway from the starting point. There was minor damage to the underside skin and propeller the pilot maintained that he did not retract the gear and that the green gear safe light was on during taxi and take-off roll. In this model aircraft, if the gear handle is in the "up" position, and the squat switch is depressed, the green gear safe light will stay on. When weight is taken off the squat switch, the gear will retract. A mechanic at the scene stated that the gear handle was in the "up" position and that this accident was similar to other accidents he had seen where the pilot took off with the gear handle in the "up" position. It appears that the pilot did not complete a through preflight inspection before the flight. The pilot will be reexamined unde section 44709.
As the FAA filed it
WHEN THE PILOT ROTATED THE AIRCRAFT FOR TAKE-OFF, THE LANDINGS GEAR RETRACTED AND THE AIRCRAFT SETTLED BACK ON TO THE RUNWAY. THE AIRCRAFT CAME TO REST ABOUT 1800 FEET DOWN THE RUNWAY FROM THE STARTING POINT. THERE WAS MINOR DAMAGE TO THE UNDERSIDE SKIN AND PROPELLER THE PILOT MAINTAINED THAT HE DID NOT RETRACT THE GEAR AND THAT THE GREEN GEAR SAFE LIGHT WAS ON DURING TAXI AND TAKE-OFF ROLL. IN THIS MODEL AIRCRAFT, IF THE GEAR HANDLE IS IN THE "UP" POSITION, AND THE SQUAT SWITCH IS DEPRESSED, THE GREEN GEAR SAFE LIGHT WILL STAY ON. WHEN WEIGHT IS TAKEN OFF THE SQUAT SWITCH, THE GEAR WILL RETRACT. A MECHANIC AT THE SCENE STATED THAT THE GEAR HANDLE WAS IN THE "UP" POSITION AND THAT THIS ACCIDENT WAS SIMILAR TO OTHER ACCIDENTS HE HAD SEEN WHERE THE PILOT TOOK OFF WITH THE GEAR HANDLE IN THE "UP" POSITION. IT APPEARS THAT THE PILOT DID NOT COMPLETE A THROUGH PREFLIGHT INSPECTION BEFORE THE FLIGHT. THE PILOT WILL BE REEXAMINED UNDE SECTION 44709.