What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Pilot reported that shortly after departure, indications in the cockpit showed nose gear down and locked, but main gear not down and locked. Gear in transit annunciator illuminated. He attempted to cycle the gear and local ATC was notified to request a fly by. He was approved and ahn tower personnel, sarajane wood and another controller visually confirmed that all gear appeared down. A second fly by was requested and there appeared to be no change. The pilot followed procedure to manually extend the landing gear and experienced extreme resistance. It appeared to him that the mechanism was against the mechanical stops. He was cleared to land on RW09 and normal approach was made. After touchdown he realized that the main gear was not locked in the down position as the aircraft began to settle. At this point, he elected to shut down both engines and the aircraft came to rest slightly left of the runway centerline. It rested on it's underside with the nose gear extended. No post landing fire or fuel leakage. Minimal scraping damage to the underside of the aircraft and no injuries to the pilot.
As the FAA filed it
(-23) PILOT REPORTED THAT SHORTLY AFTER DEPARTURE, INDICATIONS IN THE COCKPIT SHOWED NOSE GEAR DOWN AND LOCKED, BUT MAIN GEAR NOT DOWN AND LOCKED. GEAR IN TRANSIT ANNUNCIATOR ILLUMINATED. HE ATTEMPTED TO CYCLE THE GEAR AND LOCAL ATC WAS NOTIFIED TO REQUEST A FLY BY. HE WAS APPROVED AND AHN TOWER PERSONNEL, SARAJANE WOOD AND ANOTHER CONTROLLER VISUALLY CONFIRMED THAT ALL GEAR APPEARED DOWN. A SECOND FLY BY WAS REQUESTED AND THERE APPEARED TO BE NO CHANGE. THE PILOT FOLLOWED PROCEDURE TO MANUALLY EXTEND THE LANDING GEAR AND EXPERIENCED EXTREME RESISTANCE. IT APPEARED TO HIM THAT THE MECHANISM WAS AGAINST THE MECHANICAL STOPS. HE WAS CLEARED TO LAND ON RW09 AND NORMAL APPROACH WAS MADE. AFTER TOUCHDOWN HE REALIZED THAT THE MAIN GEAR WAS NOT LOCKED IN THE DOWN POSITION AS THE AIRCRAFT BEGAN TO SETTLE. AT THIS POINT, HE ELECTED TO SHUT DOWN BOTH ENGINES AND THE AIRCRAFT CAME TO REST SLIGHTLY LEFT OF THE RUNWAY CENTERLINE. IT RESTED ON IT'S UNDERSIDE WITH THE NOSE GEAR EXTENDED. NO POST LANDING FIRE OR FUEL LEAKAGE. MINIMAL SCRAPING DAMAGE TO THE UNDERSIDE OF THE AIRCRAFT AND NO INJURIES TO THE PILOT.