As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT THE GATE THE RIGHT PACK LIGHT ILLUMINATED. TEMPERATURE INDICATOR FOR R PACK WAS PEGGED HIGH. GROUNDED - YES. RIGHT PACK HAD TRIPPED OFF, ZONE TEMP CONT LOGGED TCV. RESET PACK, RAN FOR SEVERAL MINUTES - OPS CKS GOOD. ZONE TEMP BITE CKS GOOD REF B737-800 AMM 21-61-00, GND VERIFICATION SUCCESSFUL. PRECAUTIONARILY REMOVED AND REPLACED R/H PACK TCV (V141) REF AMM 21-51-10 PER TSR 713080.