What was found
STRONG ODOR PRESENT ON ACFT. COULD SMELL IN COURIER COMPARTMENT AND COCKPIT. CALLED MX, COULD NOT ID CAUSE/SOURCE. ADHESIVE ODOR FROM REPLACING FUSELAGE INSULATION IN FWD AVIONICS COMPT, ODOR STRONGER WHEN WE SET T/O PWR (MAX) FOR TAKEOFF. SMELLED MORE LIKE KEROSENE. . UPON ENTERING FLT DECK NO NOTICABLE ODOR PRESENT. SPOKE WITH JUMPSEATER AND THEY ONLY NOTICED A SLIGHT ODOR UPON ENTERING ACFT. OPENED FWD AND W/W HATCHES FOR VENTILATION WHILE ON GRND. AS A PRECAUTION CHANGED NR 1,NR 2 & NR 3 PACK COALESCER BAGS IAW AMM 21-54-03-2. SECURED FWD AND W/W HATCHES AND REPLACED SECURITY TAPE IAW SMP.