What was found
ODOR OF OIL IN COCKPIT AFTER TAKEOFF. ODOR DISSIPATED AFTER SEVERAL MINUTES. [SUP 06-06-07] ACCOMPLISHED TROUBLE SHOOTING, REPLACED RECIRCULATION FILTERS (LT,RT). RAN ENGINES AND APU WITH PACKS ON, FOUND WHAT APPEARED TO BE OIL RESIDUE ALONG INNER DIAMATER OF NR 3 BEARING COMPARTMENT HUB AREA. OIL ODOR IN COCKPIT ON TAKE OFF. ODOR CAME DURING APPLICATION OF T.O. PWR UP TO ABOUT 5,000 AGL. SUSPECT NR 1 ENGINE CAUSE OF SMELL . BOROSCOPE NR 3 BRG COMPARTMENT FOR ANY EVIDENCE OF OIL. NR 1 ENGINE 4 FAN BLADES HAVE NICKS BLADES HAVE NUMBERS 28,17,18, 26. BLENDED BLADES PER UA SPECS. REPLACED NR 1 ENGINE.