What was found
BOS - FAINT SMELL OF OIL COMING FROM ENVIRONMENTAL SYSTEM. MAINTENANCE INSPECTED LT AND RT ENGINE INTAKES FOR OIL RESIDUE, OIL FOR PROPER LEVEL AND DUCT OUTLETS FOR RESIDUE, NONE FOUND. SFP ISSUED TO HYA. MAINTENANCE INSPECTED ACM FOR OIL LEAKS, NO DEFECTS NOTED. PERFORMED COMP WASH, RAN ENGINES AT VARIOUS POWER SETTNIGS, COULD NOT DUPLICATE (CND). AIRCRAFT RELEASED FROM MAINTENANCE. (M)