What was found
FOREIGN ODD SMELL IN THE FLIGHT DECK, SIMILAR TO EXHAUST FUMES. TROUBLESHOT AS PER FIM BD500-A-J21-22-00-04A. OIL FOUND IN #1 ENGINE UNDER TR DOORS DUE TO OVERSERVICING. CLEANED OIL. NO OTHER LEAKS FOUND IN APU AREA, #2 ENGINE OR LH/ RH PACKS. RAN LH AND RH PACKS WITH ALTERNATING BLEED SUPPLIES FROM #1, #2 ENGINES AND APU. COULD NOT REPLICATE ODD SMELL IN CABIN. NO FURTHER DEFECTS NOTED. NO ONBOARD MEDICAL ATTENTION NEEDED, AND NO EMERGENCY DECLARED.