Issue
Hazard description
BUSES EQUIPPED WITH ROCKWELL INTERNATIONAL CAS ALUMINUM FRONT WHEEL HUBS INSTALLED ON ROCKWELL FF921 FRONT AXLES. THE SUBJECT HUBS MAY CONTAIN CASTING DEFICIENCIES IN THE WHEEL MOUNTING FLANGE AND/OR THE AREA OF THE INNER BEARING THAT CAN RESULT IN CRACKS LEADINT TO FAILURE OF THE HUB. A HUB FAILURE CAN CAUSE A WHEEL AND TIRE TO SEPARATE FROM THE VEHICLE CAUSING A LOSS OF VEHICLE CONTROL.
Vehicle
BLUE BIRD ALL CANADIAN SCHOOL BUS
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