What was found
HAD STRONG ODOR ON TAKE OFF ROLL AT FULL THROTTLE, PERMEATED THROUGH THE ENTIRE CABIN. AS WE CLIMBED THE SMELL DISSIPATED AND WAS REDUCED. NOTHING SMELLED DURING CRUISE. SMELL RETURNED ON APPROACH AROUND 2000 FEET AGL. NOT AS STRONG. PERFORMED FIM TASK 21-20-00-810-801-A AND 21-20-00-810-803-A. PERFORMED GVI OF PACK INTAKES, NO DEFECTS NOTED. EXAMINED APU OPERATION FOR ABNORMAL ODOR. NONE FOUND. EXAMINED ENGINE 1 AND ENGINE 2 RAN BY CREW AT 70% FOR 5 MINUTES IN CONFIGURATIONS BY FIM FOR ABNORMAL ODORS. NONE FOUND.