What was found
(CAN) DURING CRUISE FLIGHT THE LT WING OVERHEAT LIGHT ILLUMINATED FOR APPROXIMATELY 1 MINUTE AND REMAINED OFF FOR THE DURATION OF THE FLIGHT.A SUBSEQUENT INSPECTION COULD NOT REVEAL ANY FAULT, ALL ASSOCIATED WIRING WAS THOROUGHLY INSPECTED ALL LT BLED AIR LINES INSPECTED FOR LEAKS BUT NO DISCREPANCY FOUND. BOTH LT THERMAL SWITCHES ( P.N. 4344-221-22 AND 17343-61-350F) WERE REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.