As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RH PACK LIGHT ILLUMINATED DURING MASTER CAUTION RECALL. RESETS ON MASTER CAUTION PUSH TO RESET. GROUNDED - YES. RESET SYSTEM AND RAN PACKS FOR 10 MINUTES, AFTER RUNNING PACKS THE ETOPS GROUND FUNCTIONAL CHECK GOOD IAW B737-800 AMM 21-61-00-700-806-002.