As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE WHEEL BEGAN TO SHIMMY ON LANDING ROLL-OUT AT APPROXIMATELY 50 KNOTS. NO ABNORMAL CREW ACTION REQUIRED. SHIMMY DAMPER WAS REMOVED AND FOUND TO HAVE FAILED INTERNALLY. ROLL PIN SECURING SHAFT TO PISTON SHEARED. THIS PREVENTED ANY DAMPENING ACTION. NOSE WHEEL STEERING OR TRAVEL WAS NOT AFFECTED. NOSE GEAR ASSY WAS INSPECTED WITH NO FURTHER DEFECTS NOTED. DAMPER WAS REPLACED.