What was found
FLT NR 0117 - EWR - THE AIRCRAFT WAS RETURNED TO THE GATE AFTER THE NR 1 MLG BRAKE LOCKED UP. THE AIRCRAFT WAS TAKEN OUT OF SERVICE. INITIAL INSPECTION FOUND THE LEFT MLG FORWARD AXLE DAMAGED. S/D - INVESTIGATION REVEALED THAT DAMAGE TO THE BRAKE WAS A SECONDARY FAILURE DUE TO EXCESSIVE HEAT. PROBABLE CAUSE OF THE EXCESSIVE HEAT WAS ATTRIBUTED TO THE WHEEL BEARING RETAINING RING BECOMING ENTANGLED IN THE BRAKE FAN, WHICH KEPT THE FAN FROM ROTATING TO COOL THE BRAKE. THE ALLIED SIGNAL BRAKE ASSEMBLY AFFECTED WAS P/N 2606802-5, S/N B0968. (W)