As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE NLG ACTUATOR ROD END BEARING FAILED AT THE THREADED SHAFT. THIS CAUSED THE NLG TO COLLAPSE WHILE THE ACFT WAS BEING TOWED. THE ROD END BEARING THREADED SHAFT SHEARED OFF AT THE END OF THE NLG ACTUATOR. NO HARD LANDINGS AND 3 GREEN LIGHT ON THE LANDING GEAR AFTER LANDING. AFTER INSPECTING THE ROD END BEARING AND ACTUATOR SHAFT THE ENGINEER NOTICED CORROSION ON THE THREADS OF THE ACTUATOR ROD END BEARING.