What was found
TOP OF DESCENT DESCENDING THRU VISIBLE MOISTURE SELECTED ENGINE ANTI-ICE STRONG FUMES IN THE COCKPIT. L PACK OFF R PACK ON, NO SMOKE VISIBLE. EMERGENCY DECLARED. RAN ENGINE FOR OVER 30 MIN, RAN PACKS, RAN ENGINE ANTI-ICE NO FUMES OR ODORS NOTED IAW M/M 21-00-01-2 AND FILM 21-00-01 FIG 101.