As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ILLUMINATION OF RIGHT PACK DURING MASTER CAUTION RECALL. RIGHT PACK EXTINGUISHED WHEN MASTER CAUTION SYSTEM WAS RESET. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE REF B737-800 FIM 21-62 TASK 848 AND FIM 21-62 TASK 801. FOUND TCV FAULT LIGHT, RESET, GROUND VERIFICATION OPS CHECK GOOD.