What was found
FLT#1388, LAX-BOS. 'LEVEL 1 ODOR EVENT,INFLIGHT REPORTED BURNING PLASTIC SMELL IN AFT GALLEY. MILD TO MODERATE DURING CRUISE .SMELL DISSAPEARED AFTER LANDING FCOM ODOR ISOLATION PROCEDURE AS WELL AS CABIN ODOR FORM COMPLETED; C/W TSM TASK 05-50-00-810-831-A FOUND BUILD UP IN ALL 3 CCOFFEE MAKERS , REMOVED AND CLEANED COFFEE MAKERS , NO SMELL PRESENT AFTER OPS CHECK , ALSO INSPECTED GALLEY FAN NO DEFECT FOUND.'