As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF TAIL COMPARTMENT TEMP HIGH LIGHT ILLUMINATED. AMBIENT TEMP WAS 82 F AND APU HAD BEEN OFF FOR 10 MIN. RAN T/O POWER W/13TH STAGE BLEED ON. FOUND LOOSE CLAMPS ABOVE AND BELOW AIR CONDITIONING PRESSURE REGULATOR AND OUTBOARD CLAMP AT AVERAGE VALVE. TIGHTENED AND SECURED CLAMPS. PROBLEM CORRECTED IAW DC-9MM 36-20-0. (M)