As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, THE LT PACK TEMP HIGH ILLUMINATED. ACFT GROUNDED. PERFORMED PACK ZONE TEMP CONTROLLER BITE READS TCV NR 1 CONTROLLER. REPLACED TCV IAW MM 21-51-10. CONTROLLER BITE MM 21-61-00. LEAK CHECKED AND ALL PASSED. ACFT GOOD FOR SERVICE.