What was found
'FWD EQ EXH FAN' EICAS MESSAGE DISPLAYED. SMOKE ON FLIGHT DECK. CB H21 ON P6 PULLED AS PRECAUTION. SMOKE EVAC PERFORMED AND SMOKE DISSIPATED. *S/D* SMOKE IN FLIGHT DECK WAS PROBABLY CAUSED BY A BEARING FAILURE IN FORWARD EQUIPMENT EXHAUST FAN. THIS FAN WAS REPLACED PER MM 21-59-06. THERE HAS BEEN NO ADDITIONAL REPORTS OF SMOKE. THIS FAN IS NOT AN MR UNIT.