As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROLL-OUT AFTER NORMAL LANDING, THE NLG COLLAPSED. FURTHER INVESTIGATION REVEALED THE AFT NOSE GEAR RETRACT ROD HAD FAILED AT A POINT APPROXIMATELY 1 INCH ONTO THE THREADED PORTION OF THE ROD WHERE P/N ARHT5ECR ROD END THREADS ENDED IN THE ROD.