What was found
CONTROL CABIN ZONE TEMP LIGHT LUUMINATEED ON MASTER CAUTION TEST. EXTINGUISHES WITH RESET. ACFT GROUNDED. PERFORMED PACK TEMP CONTROL BITE PROCEDURE IAW FIM 21-62 TASK 801. NO EXISTING FAULTS FOUND. FAULT HISTORY SHOWED F/N SELECTOR FAULT 21-51311 LATCHED ON BOTH CONTROLLERS ON FLIGHT LEG 11. NO ACTION REQUIRED IAW FIM 21-62 TASK 862 SINCE THERE ARE NO EXISTING FAULTS. PERFORMED GROUND VERIFICATION BIT TEST IAW FIM 21-62 TASK 801 (GROUND TESTS). TESTS PASS, NO DEFECTS NOTED, BOTH CONTROLLERS.