What was found
STRONG SMELL OF "BLEED/OIL" COMING THROUGH A/C. SLIGHT IRRITATION OF EYES/NOSE ACCOMPANIED SMELL. CAME BACK STRONGER ON DESCENT AT 7.5 PSID. APU DOES NOT CREATE SMELL. MONITORED SMELLS ON TAXI FROM MAIN TERMINAL TO MAT, OBSERVED 10 SECONDS ON BLEED SMELL, SMELL CONSIDERED NORMAL. PERFORMED BLEED LINE INSPECTION IAW EMB AMM 36-21-02, OPS CHECK GOOD.