What was found
LEFT PACK LIGHT ON. WILL NOT RESET. GROUNDED - YES. REF B737-900 FIM 21-53 TASK 820 FOUND DUAL CHANNEL FAULT-PZTC 1 TCV, PZTC 2 STBY TCV. REF FIM 21-62 TASK 830 FAULT CLEARS ON VERIFY WITH NO HISTORY 30 DAYS. REF FIM 21-62 TASK 828 CLEARED FAULT AND INSPECTED STANDBY TCV SENSE LINES WITH NO DEFECTS NOTED AND OP CK GOOD PER MM 21-51-11-400-801. MAINT PROCEDURES REVERSED PLACARDS REMOVED MEL CLEARED SEAMC JAROD NOTIFIED.