As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK ILLUMINATED IN FLIGHT. GROUNDED - YES. PERFORMED PACK/ZONE TEMP CONTROLLER BITE IAW AMM 21-61-00-700-806-002. THIS PACK - TCV LIGHT ON DURING BITE OF LEFT CONTROLLER, OFF FOR PREV FLIGHT AND VERIFY TESTS. 2 OTHER OCCURRENCES LAST 60 DAYS. REMOVED AND REPLACED TCV, OPS CHECKED GOOD. IAW AMM 21-51-10.