What was found
FLT 408 FLL-FLL FUMES IN THE COCKPIT IN FLIGHT, TURN PACKS OFF FUMES CLEARED (NOT ELECTRICAL SMELL). SUSPECT DUE TO NR 1 ENGINE COMPRESSOR BOROSCOPE INSPECTION BORO PLUG ANTI SEIZE COMPOUND. CONTAMINATED BLEED SYSTEM CAUSING FUMES IN THE CABIN. PERFORMED HIGH POWER RUN PER AMM 72-00-00 AND PACK BURN, NO FUMES OR SMELL NOTED, PERFORMED INSPECTION PER AMM 21-20-00-810-801-A, NO DEFECTS NOTED, OK FOR SERVICE.