As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER BOTH ENGINE STARTED, RECEIVED A PACK TRIP OFF ON RT SIDE DURING MASTER CAUTION CHECK. PACK TRIP LIGHT EXTINGUISHED ON RESET. QRC COMPLETED. ACFT GROUNDED. PERFORMED FIM 21-62 TASK 801, NO FAULTS NOTED. PRESSING RESET SWITCH SHOWS VERIFY AND GO. NO FAULTS ON RECALL CHECK.