What was found
ON TAKEOFF AT PHX EN ROUTE FOR JFK MASTER CAUTION LIGHT ILLUMINATED WITH NO FAULTS DISPLAYED ON ECAM, REJECTED TAKEOFF AT APPROX 70 KNOTS. MX TROUBLESHOT PROBLEM TO AUTO THRUST FAILURE. ISSUED MEL 22-30-01, COND 1, AUTO THRUST FUNCTION INOP. ON 05/01/2004 WHEN AIRCRAFT RETURNED TO PHX, MAINTENANCE R & R NR 1 FMGC IAW T/C R2A22302, OPERATIONAL CHECK GOOD. FUNCTIONAL TEST OF FMGC CONFIRMED FAILURE. UNIT FAILED ARINC TEST ON AUTOMATIC TEST EQUIPMENT, BITE DATA INDICATED AUTOPILOT / AUTO THROTTLE FUNCTION FAILURE IN FLT. REPLACED INTEGRATED CIRCUIT GATE, INTEGRATED CIRCUIT H-CMOS INVERTER, INTEGRATED CIRCUIT FLIP-FLOP LATCH AND 2 EACH PROGRAMMABLE MEMORY CHIPS. UNIT WAS REPAIRED AND TESTED IAW CMM.