As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK TEMP EICAS. COMPLETED CHECKLIST, OPERATING IN MANUAL, TEMP CONTROL DIFFICULT. FOUND RT PACK RAM AIR EXIT DOOR FAILED IN CLOSED MODE & ALSO FAULTED ON CONTROLLER BITE CHECK. REPLACED ACT WRT MM 21-53-04, ALSO CONTROLLER BITE CHECKED NORMAL.