As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK OVERHEAD LIGHT ILLUMINATED DURING PREFLIGHT. GROUNDED - YES. PACK LIGHT ON WILL NOT RESET PERFORMED RH PACK TEMP CONTROL BITE CONTROLLER LOG FAULT RH PACK TCV REF B737-800 FIM 21-62 TASK 801/FIM 21-62 TASK 831. RESET TCV CB R/H PACK LIGHT EXTINGUISHED RAN PACKS FOR 30 MIN NO FAULTS LH AND RH PACK IN NORMAL.