As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEOFF, EXPERIENCED THICK SMOKE IN COCKPIT. PERFORMED INSPECTION TROUBLESHOOTING AND ISOLATION PROCEDURES TO ASSOCIATED EQUIPMENT IAW MM AND OTHER APPROVED DATA REFERENCES. COULD NOT DUPLICATE SMOKE CONDITION OR DETERMINE REASONABLE CAUSE FOR THE CONDITION.