What was found
ANTI SKID INOP LIGHT ILLUMINATED. CREW STATED ANTI SKID INOP LIGHT ILLUMINATED ON TAKE OFF ROLL AND REMAINED THROUGH OUT FLIGHT WITH SELECTOR IN OFF POSITION. UPON LANDING WITH NO AUTO BRAKES SELECTED LIGHT EXTINGUISHED. FOUND FAULT BOX 4 ON THE AACU. THE RESISTANCE OF VALVE V200 PINS 1 TO 2 WAS 191.2 OHMS AND RESISTANCE ON VALVE V124 PINS 1 TO 2 WAS 197.6 OHMS. COULD NOT DUPLICATE FAULT AND REMOVED AND REPLACED AACU IAW AMM 32-42-21 FOR PRECAUTIONARY MEASURES. AACU OPS CHECKED GOOD. IFIM TASK 32-42-00-810-831