As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED SLIGHT SMOKE IN THE COCKPIT DURING PRE-FLIGHT OPS. MAINTENANCE SHUT DOWN AIRCRAFT POWER. AFTER POWER SHUT DOWN, INSPECTED COCKPIT FOR SMOKE OR DAMAGE. NONE NOTED. INSPECTED E/E BAY AND MAIN DECK NO SMOKE NOTED. TURNED POWER BACK ON FOR AN HOUR. NO SMOKE OR SMELL NOTED. CREW PRE-FLIGHT COMPLETED WITH NO ISSUES. VERIFIED THAT NO C/B'S ARE OUT AND NO STATUS MESSAGES.