What was found
FLT NR 0297 - IAH - A HOT OILY ODOR WAS OBSERVED IN THE CABIN WITH THE AIRFOIL ANTI-ICE ON, DURING TAKEOFF, APPROACH, AND LANDING PHASES OF FLIGHT. MAINTENANCE REPLACED THE PERI SEALS ON THE RT AIR CYCLE MACHINE OUT DUCT AND OPERATIONAL CHECKS WERE GOOD. (Z)