What was found
DURING LANDING, CREW NOTED A PROBLEM WITH GEAR. IT STARTED AS A VIBRATION/SHIMMY AFTER TOUCHDOWN, THEN LT LOWER LANDING GEAR TO ROTATED CAUSING AC TO VEER TO LT AT END OF ROLLOUT. PAX DEBARKED ONTO RUNWAY AND WERE SHUTTLED TO TERMINAL. MX INSPECTED AC AND FOUND LT MLG LOWER TORQUE KNEE ATTACH POINT HAD BROKEN OFF FROM REST OF LOWER CASTING (KNUCKLE CASTING). WHEN CASTING BROKE, LOWER ASSY OF LANDING GEAR WAS NO LONGER ATTACHED TO TORQUE KNEE ENABLING LOWER ASSY TO ROTATE. MX REPLACED LT MLG AXEL AND PISTON ASSY AND OTHER DAMAGE PARTS INCLUDING TORQUE KNEE, SQUAT SWITCH AND WHEEL ASSY. MX OPS CHECKED SYS, FOUND NO FURTHER DISCREPANCIES.