As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK FAILED IN FLIGHT. ACFT GROUNDED. BITE TEST OF NR 2 ZONE TEMP CONTROLLER HAS FAULT TCV THIS PACK. REPLACED RT TCV IAW AMM 21-51-10-000-400-801. BUBBLE TEST REVEALED NO AIR LEAKS. RT PACK TEMP CONTROLLER BITE NORMAL - NO CURRENT FAULTS REF 21-61-00. PERFORMED OPS CK IAW TASK 21-61-00-700-807-002, OPS GOOD.