As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 29,000 FEET AND 30 MINUTES OUT OF DEN, CREW REPORTED AN ELECTRICAL ODOR, VISUAL HAZE AND SMOKE IN COCKPIT. SMOKE ALARM IN FORWARD LAVATORY WENT OFF. DISIPATED AFTER 5 MINUTES. CONTINUED TO DEN. REPLACED BALLAST FOR FWD THRESHOLD LIGHT. LIGHTS OPERATIONALLY CHECKED GOOD.