What was found
ON RECALL, CONT CAB ZONE TEMP ANNUNCIATOR ILLUMINATED. EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. SUPPLIED CONDITIONED AIR WITH BOTH PACKS, CONT CABIN ZONE TEMP LIGHT REMAINS OFF, LIGHT DOES NOT ILLUMINATE WITH MASTER CAUTION RECALL, REF B737-900 FIM 21-62 TASK 842. ACCOMPLISHED LEFT AND RIGHT PFTC BITE, NO FAULTS NOTED, REF FIM 21-62 TASK 801. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.