What was found
DC GENERATOR CONTROL RECEIVED FROM CUSTOMER FOR REPAIR. DURING INSPECTION, FOUND UNIDENTIFIABLE MODIFICATION ON CIRCUIT BOARD NR 51539-1081 REV E AND CIRCUIT BOARD NR 51539-1061 REV D WHEN THERE ARE NO MODIFICATIONS FOR THESE BOARDS OTHER THAN REPLACEMENT. DC GCU MFG DATE: 8-82. NOTIFIED CUSTOMER, GREEN TAG ATTACHED TO COMPONENT, AND RETURNED TO CUSTOMER.