What was found
MODE CONTROL PANEL FROZE IN FLIGHT, WITHOUT THE ABILITY TO CHANGE ANY MODE (COURSE) ALT, HLD, SPEED, N1, HDG SEL, LNAV, VNAV, FD MASTER SIDE. AUTO THROTTLE CONTINUED TO WORK. AUTO PILOT A OR B WOULD NOT ENGAGE. AFTER GROUND IDLING FOR 1.7 HR SUSPECT SMOKE IN COCKPIT, NOTIFIED ATC SHUT DOWN A/C AND EVACUATED A/C NO FIRE FOUND. R & R MCP IAW AMM 22-11-34, DFCS OPS CHECK PASS IAW AMM 22-11-01 NO DEFECTS NOTED, CLEANED EVIDENCE OF GLYCOL FROM LH RAM AIR DUCT IAW AMM 20-30-83 REMOVED SMOKE FROM AIR CONDITIONING SYS IAW AMM 21-00-00 OPS CHECK AIR CONDITIONING SYSTEM PASSED IAW AMM 21-00-00 NO DEFECTS NOTED