What was found
LWR AFT BODY OVERHEAT LIGHT BLINKED ON MOMENTARILY ONCE WHILE IN FLIGHT. REMOVED GILLINER PANELS LOWER AFT CARGO COMPARTMENT. INSPECTED SENSOR, FOUND NUMEROUS SPOTS SENSOR RUBBING METAL BRACKETS. REPOSITIONED SAME, REMOVED KEEL BEAM PANEL, INSPECTED SENSOR AND CHECKED GOOD. LEAK CHECK SYSTEM, MANY SMALL LEAKS AFT STAIR AREA. TIGHTEN CLAMPS RAN ENGINE AND APU NO LEAK NOTED. NO OVERHEAT NOTED, CLOSED ALL PANELS AND STILL NO OVERHEAT INDICATIONS NOTED.