What was found
UPON COMPLETION OF INITIAL CLIMB, NR 1 AUTOPILOT WOULD NOT CAPTURE DESIGNATED ALTITUDE. AUTOPILOT WOULD NOT HOLD SELECTED ALTITUDE OR SPEED. NR 2 AUTOPILOT ON DEFERRAL. CREW DIVERTED ACFT FOR T/S. FLT CREW USED ABNORMAL PROCEDURES & DUMPED 50,000 POUNDS OF FUEL TO REDUCE ACFT BELOW MLW. ACFT LANDED WITHOUT INCIDENT. MX CONFIRMED NR 1 AUTOPILOT PITCH COMPUTER MALFUNCTIONING. REPLACED NR 1 AUTOPILOT PITCH COMPUTER. NR 2 AUTOPILOT SYS T/S, FAULT DETERMINED TO BE SHORT IN PINS 38-39 OF J3A CANNON PLUG ON LT, OTBD ELEV ACT. SHORT CORRECTED. BITE & STATUS TESTS REMAIN AT CAT I UNTIL SUCCESSFUL FLT TESTS. MX HAD CONTACT WITH FLT CREWS DURING 3 SUCCEEDING FLTS. FLT CREWS REPORT NO MALFUNCTIONS. (X)