As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PACK 2 EICAS ADVISORY MESSAGE DISPLAYED. NEITHER PTC IN CONTROL OF PACK 2 FOR 30 SECONDS OR PACK COMPONENT FAILURE OR OVERHEAT OR PACK TRIP DUE TO OVERHEAT OR OUT OF SEQUENCE. HAD SYS FAULT LIGHT WITH PACK 2 EICAS MESSAGE. PACK 2 RESET OK IAW QRH PROCEDURE. RAN PACK ON GND, NO FAULTS NOTED. RESET WAS ACCOMPLISHED BY CREW.