As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, SMOKE WAS SEEN IN THE COCKPIT AND AFT CABIN AREA. TURNED RECIRCULATION FANS OFF AND SMOKE DISSIPATED. FLIGHT DIVERTED TO GEG. MAINTENANCE REPLACED COALESCER BAGS, PURGED PNEUMATIC SYSTEM PER MM AND CLEANED APU INLET AREA.