What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Pilot taxied to active runway and applied full power for takeoff. Aircraft accelerated normally. As soon as pilot raised nose for take off, he stated that the right landing gear collapsed. The aircraft started to yaw and the left main gear collapsed followed by the nose gear. Both propellers contacted the runway as the aircraft slid to a stop. Inspection indicated that neither wing tip was damaged and the gear doors received scratches indicating that the aircraft had slid straight ahead on its belly. Pilot stated that the gear lever was in the down position during his runup.
As the FAA filed it
(-23) PILOT TAXIED TO ACTIVE RUNWAY AND APPLIED FULL POWER FOR TAKEOFF. AIRCRAFT ACCELERATED NORMALLY. AS SOON AS PILOT RAISED NOSE FOR TAKE OFF, HE STATED THAT THE RIGHT LANDING GEAR COLLAPSED. THE AIRCRAFT STARTED TO YAW AND THE LEFT MAIN GEAR COLLAPSED FOLLOWED BY THE NOSE GEAR. BOTH PROPELLERS CONTACTED THE RUNWAY AS THE AIRCRAFT SLID TO A STOP. INSPECTION INDICATED THAT NEITHER WING TIP WAS DAMAGED AND THE GEAR DOORS RECEIVED SCRATCHES INDICATING THAT THE AIRCRAFT HAD SLID STRAIGHT AHEAD ON ITS BELLY. PILOT STATED THAT THE GEAR LEVER WAS IN THE DOWN POSITION DURING HIS RUNUP.