As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATED AFTER LANDING. GROUNDED - YES. ACCOMPLISHED PACK / ZONE TEMP CONTROLLER BITECK PER B737-800 AMM 21-61-00, FOUND TEMP CONTROL VALVE FAULT ON #2 CONTROLLER. REMOVED & REPLACED RT PACK TEMP CONTROL VALVE PER AMM 21-51-10. LEAK CK AND BITE CK GOOD NO FAULTS ON BOTH CONTROLLERS PER AMM 21-61-00.