What was found
(CAN) DURING CLIMB, THE AIRCRAFT STARTED AN UN-COMMANDED ROLL TO THE RIGHT REACHING AN ESTIMATED 35 BANK ANGLE. FLIGHT CREW DISENGAGED THE AUTOPILOT AN AIRCRAFT ATTITUDE RE-ESTABLISHED. THE AUTOPILOT WAS DEFERRED UNDER MEL AND THE AIRCRAFT REMAINED IN SERVICE. DURING TROUBLESHOOTING, THE MAINTENANCE DIAGNOSTIC COMPUTER (MDC) WAS INTERROGATED AND THE NUMBER 2 FLIGHT CONTROL COMPUTER FOUND AT FAULT. THE NUMBER 2 FCC WAS REPLACED AND THE SYSTEM TESTED SERVICEABLE BEFORE RETURNING THE AIRCRAFT TO SERVICE. SHOP STRIP DOWN REPORT WILL BE ATTACHED WHEN AND IF IT BECOMES AVAILABLE. (TC# 20180511007)