As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW CREW REPORTED ON TAKEOFF, BOTH AIR CONDITIONING SUPPLY TEMPERATURE HIGH LIGHTS ILLUMINATED & STAYED ON UNTIL POWER REDUCTION. FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND LT & RT HAND AUGMENTATION VALVE SENSING LINE STILL CAPPED. REMOVED CAPS & CONNECTED LINES, SYSTEM GROUND CHECKED NORMAL OPERATION CLOSED.