What was found
BELIEVED WE MAY EXPERIENCED FUMES ON TAXI AND TAKE OFF FUME EVENT EXPERIENCED ALSO ON DESCENT. MECHANICAL SMELL AROUND 10,000 FEET BELIEVED THAT PACK 1 WAS SOURCE OF SMELL. WHEN PACK 1 WAS CLOSED, SMELL DISIPATED.-ISOLATED ODOR TO PACK 1 PER TSM. 05-50-00-810-831-A PERFORMED DECONTAMINATION OF (ECS) IAW AMM 21-00-00-615-802-A LVL A CONTAMINATION, UNABLE TO DUPLICATE ODOR, AC OK FOR CONTINUED SERVICE.