What was found
CONTROLLER CABIN ZONE TEMP ILLUMINATED ON RECALL AFTER ENGINGE START. EXTINGUISHES WHEN MASTER CAUTION PRESSED. ACFT GROUNDED. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE, BOTH NR 1 & NR 2, REF FIM 21-62, TASK 801, BITE TEST PASSES, 10 TIMES AND NO FAULT HISTORY LAST 50 LEGS. ACCOMPLISHED, CONT CAB ZONE TEMP LIGHT ON & STAYS OFF AFTER RESET, FAULT ISOLATION, REF FIM 21-62, TASK 842 & ZONE TEMP LIGHT ON RECALL, FAULT ISOLATION, REF FIM 21-62, TASK 848, NO FAULTS FOUND. ACCOMPLISHED GVI LT AC BAY AREA, V143, FLT DECK TCV & V139, TCV 1, NO LEAK, DEFECTS NOTED. RAN APU AND SWITCHED ACFT POWER BETWEEN APU POWER & GROUND POWER, GROUND VERIFICATION TEST NORMAL.