What was found
EWR - FLT 1927 - ON CLIMB-OUT, EN ROUTE EWR-ORD, TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED AFTER AIRFOIL ANTI-ICE SWITCHES PLACED ON. LIGHT WENT OUT AFTER COMPLETED PROCEDURE. PRESSURIZATION FLOW LIGHT ALSO CAME ON SEVERAL TIMES. RETURNED AND LANDED EWR WITHOUT INCIDENT. REPLACED RAM AIR EXHAUST DUCT. (M)