As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK LIGHT COMES ON W/ RECALL EXTINGUISHES WITH RESET. GROUNDED - YES. PERFORMED BITE CHECK OF #2 PACK/ZONE TEMP CTRL SHOWS "TCV-THIS PACK" LAST FLIGHT, REF B737-800 FIM 21-62 TASK 801. FAULT CLEARS. RE-PERFORMED RH PACK TEMP CONTROL BITE PROCEDURE, CONFIRMED NO FAULTS ACTIVE ON RH TEMP CONTROLLER. DUE TO HISTORY AND PREVIOUS TROUBLESHOOTING REMOVED AND REPLACED TEMP CONTROL VALVE REF B737-800 AMM 21-51-10. LEAK CHECK GOOD. PERFORMED BITE PROCEDURE; NO FAULTS NOTED. GROUND VERIFICATION SUCCESSFUL.