What was found
ON RECALL "CONT CAB" ZONE TEMP LIGHT REMAINED ILLUMINATED WITH AIR COND LIGHT. LIGHT EXTINGUISH WITH MASTER CAUTION RESET. GROUNDED - YES. UNABLE TO DUPLICATE DEFECT - MASTER CAUTION RECALL SHOWED NO ZONE TEMP LIGHTS, BITE OF BOTH PACK/ZONE TEMP CONTROLLERS PER FIM 21-62 TASK 801 SHOWED NO FAULTS ON EITHER CONTROLLER, AND VERIFY TEST PASSED FOR BOTH WITH NO FAULTS. PERFORMED OPERATIONAL TEST OF CABIN TEMPERATURE CONTROL AND INDICATION SYSTEM PER AMM 21-61-00-700-807-002 - ALL TESTS PASSED.