What was found
FUMES NOTED IN FLIGHT DECK AND FWD CABIN DURING DESCENT. ALT 15000' CHEMICAL SMELL. PERFORMED SMOKE AND FUMES IN COCKPIT CHK PER W/C 0550-2001. NO DEFECTS NOTED. R/R RECIRCULATION FILTERS IAW A220 AMP 21-22. RE-PERFORMED SMOKE AND FUMES IN COCKPIT CHK PER W/C 0550-2001. VERIFIED BOTH ENGINES NO SIGNS OF OIL LEAKING OR WETTING OF BLADES OR SPINNERS. PACK FOR ANY INGESTION. FOUND RAM AIR DUCT CLAMP BROKEN RE SECURED DUCT IAW A220 AMP 2-52 INSPECTED AND FOUND NO ISSUES W/ APU AND INLET.INSP APU COMPARTMENT. NO OIL LEAKS PRESENT.OK FOR SVC. W/C 0550-9001-A220 C/W. (LP# 6114528)