What was found
(RXWY) DEFECT REPORTED AS BRAKE BINDING/ OVERHEATING BRAKE UNIT SN AUG86-2471, REMOVED. BRAKE UNIT SN JUN88-2439 FITTED. FAST TAXI TEST CARRIED OUT . THE BRAKE LOCKED UP, THE WHEEL WAS REMOVED OVERHEATING WAS AGAIN EVIDENT AND THE ROTATING DISC PN RFS 1065 FELL OUT IN PIECES. BOTH BRAKES WERE O/H USING NEW ROTATING DISCS. THERE HAS BEEN 1 PREVIOUS REPORTED INCIDENT WHEN OVERHEATING WAS REPORTED SN FEB70-83 REFERS, THIS UNIT WAS ALSO BY THIS REPAIR STATION USING ROTATING DISCS PN 1065. ALL THE ROTATING DISCS USED IN THE 3 OFF BRAKES MENTIONED WERE FROM SAME BATCH/ LOT NR 01210. THE ACFT REG AND SN WERE NOT AVAILABLE WHEN THIS REPORT WAS RAISED.