What was found
PASSENGERS COMPLAINED OF BURNING PLASTIC ODOR WHICH MADE THEM NAUSEAS. FOUND WING ANTI-ICE DUCT HEAT SHIELD OUT OF POSITION ALLOWING HEAT TO BE TRANSFERRED TO PLASTIC. ADJUSTED AND PERFORMED SYS CHECK WITH NO DISCREPANCIES FOUND. A SUBSEQUENT FLIGHT HAD A BURNING PLASTIC ODOR AND WHEN A FLIGHT CREW MEMBER STEPPED BACK TO INVESTIGATE A SLIGHT VISUAL AMOUNT OF SMOKE WAS SEEN IN AREA OF WING DE-ICE DUCT. SUBSEQUENT INSPECTION REVEALED THAT THE INSULATION BLANKET HOOK AND LOOP STRIP HAD COME IN CONTACT WITH BARE METAL OF DE-ICE DUCT. COVERED DE-ICE DUCT WITH HEAT SHIELD. NO FURTHER FAULTS FOUND.