What was found
REFERENCE LOG PAGE 1043522, DURING CLIMB OUT, THE CREW NOTICED AN OIL FUME SMELL IN COCKPIT & CABIN. THE ACFT RETURNED. MX DISCOVERED OIL SPILL AROUND APU AIR INLET & DUCT ASSEMBLY. CLEANED AREA OF OIL & PERFORMED LEAK CHECK. RAN NR ONE & TWO PACK WITH BLEED AIR. RAN NR ONE & NR TWO ENG, NO LEAKS NOTED, OPERATIONAL CHECKED GOOD IAW AMM 05-50-00-810-831A.