As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATED DURING MASTER CAUTION RECALL AT TOP OF DESCENT. LIGHT DOES AWAY WHEN RESET. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE REF B737-800 FIM 21-62 TASK 801. RAM AIR LIGHT ILLUMINATES UPON BITE TEST AND PREVIOUS LEG ON NO.1 PACK/ZONE TEMP CONTROLLER. RESET NO.1 PACK/ZONE TEMP. CONTROLLER AND FAULT DID NOT RETURN. REPERFORMED BITE AND NO FAULTS FOUND.