What was found
(CAN) WHILE LANDING THE FLIGHT CREW NOTICED A SHIMMY IN THE LANDING GEAR. BELIEVING THAT THEY HAD BLOWN A TIRE, THEY STOPPED ON A TAXIWAY AND CONTACTED MAINTENANCE. MAINTENANCE DROVE TO THE AIRCRAFT AND INSPECTED THE LANDING GEAR. FINDING NO OBVIOUS FAULTS, MAINTENANCE HAD THE CREW TAXI THE AIRCRAFT TO THE RAMP. AFTER A THOROUGH INSPECTION OF THE LANDING GEAR, BRAKES AND TORQUE LINKS THE NR 1 AND NR 4 MAIN WHEEL BEARINGS WERE FOUND WITH WATER CONTAMINATION. BOTH WHEEL ASSEMBLIES WERE REPLACED. NR 2 AND NR 3 MAIN WHEEL ASSEMBLIES WERE INSPECTED AND FOUND TO BE SERVICEABLE. AIRCRAFT WAS DECLARED SERVICEABLE AND NO OTHER FAULTS WERE FOUND. (ALSO: US NR 2004042300081)