What was found
DFW - FLT 568 - AFTER TAKEOFF DFW PASSING 9,000 FT TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED. RAN ABNORMAL PROCEDURE CHECKLIST, TAIL COMPARTMENT TEMPERATURE HIGH LIGHT FLICKERED A FEW MINUTES AND THAN EXTINGUISHED. A FEW MINUTES LATER, WHEN POWER INCREASED, TAIL COMPARTMENT TEMPERATURE HIGH LIGHT FLICKERED ON/OFF. RETURNED DFW AND LANDED WITHOUT INCIDENT. TIGHTENED EXTERNAL START AIR FITTING AND RAN ENGINES AND ACCOMPLISHED LEAK CHECK. (M)