What was found
ON TAKEOFF GOT A STRONG ODOR WITH A OIL TYPE ODOR. ALL INDICATIONS WORK WITH L/P 8594308. NORMAL AND ODOR DISSAPATED QUICKLY. T/S IAW FIM 21-00, TASK 808, INSPECTED THE FOLLOWING AREAS; PAX CABIN, GALLEYS, OVENS, LAVS, VENT FANS, CARGO COMPARTMENTS, RECIRC FAN & MIX MANIFOLD AREA, LOW PRESS GND CONNECTIONS, ECS BAYS, ENGINES, ENG INLETS, FAN, LPC INLET STATOR. WITH NO DEFECT NOTED. NO SIGNS OF OIL CONTAMINATION NOTED. DURING OUR FLT DECK CHECKS, WITH APU BLEED ON, TRIED MULTIPLE COMBINATIONS OF PACKS, VALVES, FANS ON & OFF. ODOR OF DIRTY SOCKS WAS VERY FAINT, ALMOST UNNOTICEABLE AFTER A FEW MINS. UNABLE TO ISOLATE ACTUAL SOURCE OF ODOR. 4 EA LOWER RECIRCULATION AIR FILTERS R & R IAW AMM 21-25-08/401.