What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
After one uneventful touch and go landing, the pilot flew a long straight in stabilized approach intending to make another touch and go landing. Weather was clear with calm winds. The aircraft touched down smoothly about 800 feet down the runway on centerline and the pilot briefly looked down to check flap and trim settings before takeoff. The pilot felt a very subtle, but abnormal wiggling of the aircraft almost immediately and looked up to see he was just slightly left of centerline and going further (right main on centerline). The pilot pushed very slightly on the right rudder with no response and the airplane was now shuddering and felt like a blown and shredding nose tire as he had no control. The prop hit the runway stopping the engine as the aircraft was departing the runway surface and skidded smoothly to a stop on the infield grass. The pilot turned off the master switch and fuel shut off and exited the aircraft. The landing gear had completely collapsed under the aircraft.
An examination of the runway appeared to show that the aircraft touched down normally and then on rollout the right main gear started to collapse and then the right wingtip hit the pavement. The aircraft continued to veer left as the nose and left main gear collapsed underneath the aircraft as it continued into the grass.
As the FAA filed it
AFTER ONE UNEVENTFUL TOUCH AND GO LANDING, THE PILOT FLEW A LONG STRAIGHT IN STABILIZED APPROACH INTENDING TO MAKE ANOTHER TOUCH AND GO LANDING. WEATHER WAS CLEAR WITH CALM WINDS. THE AIRCRAFT TOUCHED DOWN SMOOTHLY ABOUT 800 FEET DOWN THE RUNWAY ON CENTERLINE AND THE PILOT BRIEFLY LOOKED DOWN TO CHECK FLAP AND TRIM SETTINGS BEFORE TAKEOFF. THE PILOT FELT A VERY SUBTLE, BUT ABNORMAL WIGGLING OF THE AIRCRAFT ALMOST IMMEDIATELY AND LOOKED UP TO SEE HE WAS JUST SLIGHTLY LEFT OF CENTERLINE AND GOING FURTHER (RIGHT MAIN ON CENTERLINE). THE PILOT PUSHED VERY SLIGHTLY ON THE RIGHT RUDDER WITH NO RESPONSE AND THE AIRPLANE WAS NOW SHUDDERING AND FELT LIKE A BLOWN AND SHREDDING NOSE TIRE AS HE HAD NO CONTROL. THE PROP HIT THE RUNWAY STOPPING THE ENGINE AS THE AIRCRAFT WAS DEPARTING THE RUNWAY SURFACE AND SKIDDED SMOOTHLY TO A STOP ON THE INFIELD GRASS. THE PILOT TURNED OFF THE MASTER SWITCH AND FUEL SHUT OFF AND EXITED THE AIRCRAFT. THE LANDING GEAR HAD COMPLETELY COLLAPSED UNDER THE AIRCRAFT.
AN EXAMINATION OF THE RUNWAY APPEARED TO SHOW THAT THE AIRCRAFT TOUCHED DOWN NORMALLY AND THEN ON ROLLOUT THE RIGHT MAIN GEAR STARTED TO COLLAPSE AND THEN THE RIGHT WINGTIP HIT THE PAVEMENT. THE AIRCRAFT CONTINUED TO VEER LEFT AS THE NOSE AND LEFT MAIN GEAR COLLAPSED UNDERNEATH THE AIRCRAFT AS IT CONTINUED INTO THE GRASS.