What was found
STRONG SMELL IN FLIGHT DECK ON DECENT POSSIBLE HYD FLUID IN BLEED 1. INSPECTED A/C ENGINES, APU, BLEED AIR, AND PAX SYSTEMS. NO OIL OR HYD LEAKS NOTED. RAN APU, AND BOTH ENGINES W/ PAX 1,2 ON HOT AND COLD. ONLY SLIGHT SMELL NOTED. AFTER SECONF RUN OF ENGINES AND APU WITH BOTH PAX ON, VERY LITTLE IF ANY SMELL NOTED.