As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANT CALLED FLT DECK WITH REPORT OF SMOKE COMING OUT OF THE FLOOR VENT FWD. NOTED THE RIGHT RECIR FAN ICAS MSG WAS ILLUMINATED. TURNED L AND R RECIR FANS OFF. TURNED L AND R UTILITY SWITCH OFF AND SMOKE DISSIPATED. PROBLEM OCCURRED ON 12/09/03, RIGHT RECIR FAN OVERHEATED. REPLACED RT RECIRC FAN.