As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OMA - FLT 142 - DURING CRUISE HAD ODOR AND SMOKE IN COCKPIT. ELECTRICAL SYSTEMS AND AIR CONDITIONING SYSTEM APPEARED NORMAL. CHECKED ELECTRICAL PANELS IN COCKPIT AND ELECTRICAL EQUIPMENT COMPARTMENT AND NO ABNORMALITIES FOUND. CHECK C-2D - 1-13-93 - MCI.