As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH PACK LIGHT ON MASTER CAUTION RECALL EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROL BITE PROCEDURE #1 CONTROLLER SHOWED TCV FAULT WAS ABLE TO RESET. RAN BITE CK 2 MORE TIMES NO FAULTS NOTED. #2 CONTROLLER CK GOOD NO FAULTS NOTED. MASTER CAUTION RECALL NO LH PACK LIGHT GROUND VERIFICATION CK GOOD REF B737-900 FIM 21-62 TASK 801.