What was found
(CAN) WHILE TAXING FOR TAKEOFF, A PAX REPORTED SMOKE COMING FROM THE RT INBD MW ASSEMBLY. AIRCRAFT WAS STOPPED & TIRE WENT FLAT. EMER SERVICES WERE REQUESTED & CLEARED THE ACFT TO RETURN TO THE GATE. ACFT TAXIED BACK WITHOUT FURTHER INCIDENT. THE ACFT WAS REMOVED FROM SERVICE & INSPECTED IAW TASK 05-50-17-210-801. INSPECTION AFTER A WHEEL BEARING FAILURE. SIGNIFICANT DAMAGES WERE NOTICED ON THE MW ASSEMBLY, BRAKE UNIT, WHEEL SPEED TRANSDUCER & MLG AXLE. EVIDENCES SUGGEST INCIDENT ORIGINATED FROM FAILURE OF THE MW INNER BEARING. THE MLG AXLE, WHEEL SPEED TRANSDUCER & BOTH MW ASSEMBLY, BRAKE UNITS WERE REPLACED & TESTED.