As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT MAIN LANDING GEAR ACTUATOR ROD END BROKE IN HALF WHERE PIVOT BALL IS RETAINED. NOT SURE WHETHER IT BROKE ON UP OR DOWN CYCLE. AFTER FAILURE, GEAR WOULD NOT COMPLETELY LOCK. BLOW DOWN SYSTEM AND HAND PUMP WERE NOT ABLE TO WORK WITH ROD END BROKEN. GEAR WAS EXTENDED, BUT SLOWLY COLLAPSED UPON LANDING. FAILURE MAY HAVE BEEN CAUSED BY MACHINING MARKS ON ROD END OR BY LACK OF PROVISION FOR A DOWN-CYCLE STOP NUT ON THE ACTUATOR SHAFT. (X)