As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT MAIN GEAR WAS DOWN BUT NOT LOCKED. PILOT PERFORMED GEAR UP LANDING. ON INSPECTION, THE RT PIVOT ASSY WAS PROTRUDING APPROX .5" OUT OF ACTUATOR. AFTER RAISING ACFT ON JACKS, HYD APPEARED TO BE WORKING PROPERLY AND POWER PACK WAS FULL OF FLUID. REMOVED RT ACTUATOR AND PIVOT ASSY. SHAFT WAS FOUND TO BE BROKEN IN 2 PIECES