A B767-300 WAS DISPATCHED AFTER R TRUCK L FRONT WHEEL AND TIRE ASSEMBLY WAS REPLACED. CREW NOTED ON CLBOUT BRAKE TEMP ON REPLACED WHEEL HIGH.

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B767-300 MAINT MANUAL 32-45-01 WAS USED AND PRINTED FOR #3 FORWARD TIRE CHANGE. ACFT X LANDED AT ORD AFTER TIRE CHANGE WITH #3 FORWARD HIGH BRAKE TEMP. AMT'S FOUND SPACER MISSING ON AXLE BTWN TIRE AND WHEEL ASSEMBLY AND BRAKE ASSEMBLY; AMT'S CHANGED BRAKE AND TIRE AND WHEEL ASSEMBLY FOR PRECAUTION WITH ORIGINAL SPACER SENT. OLD SPACER WAS FOUND STUCK ON; OLD TIRE INNER BEARING OF WHEEL ASSEMBLY AFTER INVESTIGATION. I (MR X) INSPECTED THE AXLE PRIOR TO WHEEL INSTALLATION FOR DAMAGE AND SPACER INSTALLATION AND MISINTERPRETED THE FEATURES OF THE INNER BRAKE HOUSING FOR THE PRESENTS OF THE SPACER. NOTHING ELSE WAS OBSERVED IN THE COMPLETED INSTALLATION OF THE TIRE AND WHEEL ASSEMBLY CHANGE TO WARN THAT THE SPACER WAS MISSING; IE; NORMAL TORQUE OF AXLE NUT AND SAFETY AND NORMAL ROTATION OF THE WHEEL. WHAT COULD BE DONE TO PREVENT RECURRENCE IS TO PAINT THE SPACER YELLOW OR ORANGE TO HIGHLIGHT ITS PRESENCE AND MAKE IT OBVIOUS WHEN STUCK ON THE REMOVED WHEEL BEARING OR PROPERLY INSTALLED ON THE AXLE.