What was found
AIRCRAFT RETURNED TO PLATFORM, "LEFT AIR COND SUPPLY TEMP HI" LIGHT TURNED ON. BREAKER B1-251 WAS RESEATED, TEMPERATURE SENSOR AND THERMAL SWITCH WERE DISCONNECTED AND FAIL CONTINUE. ENGINES WERE SHUTDOWN AND LIGHT WAS DEFERRED IAW MEL 21-2. DURING OVERNIGHT SERVICE, SENSOR WIRING WAS REPAIRED IAW MM 20-50-01 AND WDM 21-61-04, TEST CORRECT.