As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATED WITH RIGHT PACK OFF. ACFT GROUNDED. NR 2 ZONE TEMP CONT SHOWS THE PACK TCV ON BITE, WILL NOT RESET. REPLACED RT TCV IAW MM 21-51-10-000-801, AND 21-51-10-400-801. OPS CHECKED OK. RESTORED ACFT TO ORIGINAL CONFIGURATION.