As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER START, ON MASTER CAUTION RECALL, AIR COND AND RT PACK WITH MASTER CAUTION ILLUMINATED ACCOMPLISHED AIR CONDITION. QRH RT PACK TEMP CONTROL INOP. ACFT GROUNDED. ACCOMPLISHED BITE OF NR 2 TEMP CONTROLLER REF AMM 21-61-00-700-806-002. TCV FAULT ILLUMINATED. REPLACED RT PACK TCV REF: AMM 21-51-10. OPS CK GOOD: INTERROGATION OF RT PACK ZONE TEMP CONTROLLER WAS CLEAN.