As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATES ON MASTER RECALL. GROUNDED - YES. PERFORMED PACK/ZONE TEMPERATURE BITE CHECK ON LH PACK REF B737-800 AMM 21-61-00-700-806-002 FOUND TCV FAULT IN HISTORY CLEARS AFTER RESET. NOT ABLE TO GENERATE FAULT. SYSTEM OK FOR SERVICE.