What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) After take-off the left MLG (main landing gear) lower torque knee became detached from the MLG assembly. This condition caused the gear to over extend so it wouldn't clear the gear well upon retraction. The pressure of the motor trying to bring the gear up caused the push-pull tube to bend at the inboard attaching point, the micro-switches to malfunction and the landing gear circuit breaker to pop. The pilot attempted to lower the gear manually, but because of the malfunctioning switches, couldn't get a gear safe indication. He flew past the tower which confirmed the gear appeared to be down. When the airplane touched down the left MLG strut and wheel assembly separated from the main gear upper trunnion and the airplane slid off of the left side of the runway.
As the FAA filed it
(-23) AFTER TAKE-OFF THE LEFT MLG (MAIN LANDING GEAR) LOWER TORQUE KNEE BECAME DETACHED FROM THE MLG ASSEMBLY. THIS CONDITION CAUSED THE GEAR TO OVER EXTEND SO IT WOULDN'T CLEAR THE GEAR WELL UPON RETRACTION. THE PRESSURE OF THE MOTOR TRYING TO BRING THE GEAR UP CAUSED THE PUSH-PULL TUBE TO BEND AT THE INBOARD ATTACHING POINT, THE MICRO-SWITCHES TO MALFUNCTION AND THE LANDING GEAR CIRCUIT BREAKER TO POP. THE PILOT ATTEMPTED TO LOWER THE GEAR MANUALLY, BUT BECAUSE OF THE MALFUNCTIONING SWITCHES, COULDN'T GET A GEAR SAFE INDICATION. HE FLEW PAST THE TOWER WHICH CONFIRMED THE GEAR APPEARED TO BE DOWN. WHEN THE AIRPLANE TOUCHED DOWN THE LEFT MLG STRUT AND WHEEL ASSEMBLY SEPARATED FROM THE MAIN GEAR UPPER TRUNNION AND THE AIRPLANE SLID OFF OF THE LEFT SIDE OF THE RUNWAY.