What was found
TAIL COMPARTMENT TEMPERATURE CAME ON IN FLIGHT FOR A FEW SECONDS ON CLIMBOUT, PERFORMED STEP IN ORH AND RETURNED TO HOUSTON. GROUND START OPS CHECKED FOR LEAKS IN AFT COMPARTMENT, DISCONNECTED LEFT PACK PER DDP. RECONNECTED LEFT PACK FOR TROUBLESHOOTING, NO DEFECTS FOUND. CHECKED CLAMPS FOR SECURITY, OPS CHECKED NORMAL IAW MM 21-50.