What was found
BOTH FAS & SOME PAX REPORTED FOG, SMOKE, FUMES VISIBLE IN CABIN, MORE REAR OF CABIN DURING FULL POWER TAKEOFF ROLL. SLOWLY DISSIPATED DURING CRUISE. REPORTED BURNING EYES AS WELL (FLT 3679). INSPECT & ENG RUNS, COULD NOT VERIFY THE ISSUE. VERIFIED PLANES WERE BEING DE-ICED BEFORE TAKEOFF. SUSPECT INJESTION OF DE-ICE FLUID TO BE CAUSE OF SMOKE EVENT. BORO INSP OF RT ENG COMPRESSOR, BLADES & VANES, BORO INSP BEHIND FAN DISK OF RT ENG. BORO INSP BEHIND FAN DISK OF LT ENG. BORO INSP OF LT ENG COMPRESSOR, BLADES & VANES. GVI OF APU LCV. RT ENG COMP WASH. LT ENG COMP WASH. PERFORMED OPS CHK OF AIR-CON DISTRIBUTION SYS WITH APU & ENG IAW AMM 21-51-00. NO SMOKE OR FOG. OPS CHKD NORMAL ON GROUND.