As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL. LIGHT GOES OUT ON MASTER CAUTION RESET. GROUNDED - YES. MSG ACTIVE ON RECALL, PZTC-2 SHOWS THIS PACK TCV ON CURRENT BIT REF B737-800 FIM 21-62 TASK 831. REMOVED AND REPLACED R/H TEMP CONTROL VALVE REF B737-800 AMM 21-51-10. LEAK CHECK GOOD. OPS CHECK GOOD.