As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT HAD STRONG ELEC SMOKE ODOR IN COCKPIT, GOT STRONGER FOR ABOUT 2 MIN THEN DISSIPATED. NO C/BS WERE FOUND TO BE POPPED. SMELLED ALL RACKS IN E AND E COMP, NO ODORS. PULLED C/B PANELS, OP IN COCKPIT NO ODORSS. PULLED FWD INSTRUMENT PANEL AND CRT. SMELLS FROM EQUIPMENT OR EQUIPMENT COOLING. ETOPS CATEGORY 'F': ANY OTHER EVENT DETRIMENTAL TO ETOPS.