As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONTROL CABIN SUPPLY AIR TOO HOT, RAN QRH FOR CONTROL TEMP HOT. COULD NOT GET CONTROL OF TEMP. 80 DEGREES INDICATED ON DUCT SUPPLY, LT PACK LIGHT ILLUMINATED, TURNED PACK OFF TO KEEP LIGHT OFF. ACFT GROUNDED. R & R LT TCV LK & OPS NORMAL REF MM 21-51-10. ACCOMPLISH PACK/ZONE TEMP CONTROLLER BITE CK NO DEFECTS NOTED REF MM 21-61-00.