What was found
WHEN "A" AUTOPILOT ENGAGED AIRCRAFT STARTED UNCOMMANDED LEFT ROLL. DISENGAGED "A". "B" WOULD NOT ENGAGE. CYCLED YOKE SWITCHES AND YOKES NEITHER WOULD ENGAGE. FINALLY GOT "B" TO ENGAGE BUT IT WOULD NOT FOLOW ANY COMMANDS. REPLACED "A" CHANNEL CCA IAW 22-13-02. RESEATED PUSHED BACK PINS 14, 15, 16 ON "B" CHANNEL CCA IAW 20-61-00. REPLACED AUTOPILOT ACC BOX NR 2 PER MM 22-11-03. ACCOMPLISHED CHECKS ON BOTH A & B A/P CHANNELS BOTH CHECK OK.