As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE IN COCKPIT. SUSPECT MCDU PCN 482-9002. FOUND SOURCE OF SMOKE TO BE CAPTAINS MCDU. REMOVED MCDU. INSPECTED CONNECTORS AND WIRING AND RECEPTACLE AND FOUND NO ABNORMALITIES. REPLACED CAPT'S MCDU PER MM AFTER CONFERRING WITH LM. OPS NORMAL.