What was found
DURING OPS, CHECK FLIGHT FOR SAME PROBLEM, ENROUTE, THE LOW BRAKE PRESSURE & ANTI SKID INOPERATIVE LIGHT ILLUMINATED. AN EMERGENCY WAS DECLARED AND DIVERTED. LANDING WAS UNEVENTFUL. MX TROUBLESHOT ISSUE TO THE DOWNLOCK SWITCH INSIDE THE RT MAIN GEAR ACTUATOR. RT MLG ACTUATOR WAS REMOVED. ACCOMPLISHED REPAIR, REPLACED, ADJUSTED AND TESTED SWITCH AND MODIFIED ACTUATOR TO A-B VERSION IAW THE COMPONENT MM 32-32-14. REINSTALLED ACTUATOR, ALL OPS CHECKS WERE NORMAL. ACFT RETURNED TO SERVICE.