What was found
FLT#2625, RDU-FLL. 'FORWARD CABIN HAS AN "OILY" SMELL, NOT NOTED IN MID OR AFT CABIN; ACCOMPLISHED INFO NOTICE 2017T-T015J PART B2 & TSM 05-50-810-831-A DETERMINED IS LEVEL 2 FOUND ROOT CAUSE APU DUE TO LOW OIL LEVEL & EVIDENCE OF OIL IN COMPRESSOR SECTION & DRAIN INTERNAL LEAK. SEE ITEM 2 FOR APU DEFERAL. ACCOMPLISHED LEVEL B REMOVAL OF CONTAMINATION IAW AMM21-00-00-615-803-A. VERIFIED WITH ENG 1 AND 2 BLEED CHECK GOOD. NO ODOR SMELL PRESENT IAW AMM71-00-00 A/C RETURN TO SERVICE.