As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT GATE RT PACK INOP IN AUTO WITH APU ON WORKS IN SSBY MODE. RT TEMP INOP EICAS MSG INTERROGATED RT PACK CONTROLLER FOUND RAM OUTL ACTR FLAGGED. UNABLE TO RESET REMOVED PLUG ON RAM AIR OUTLET ACTUATOR NOW SYSTEM RESET. PACK IS WORKING NOW IN AUTO MODE BUT DUE TO HISTORY DEFERRED PER MEL 2151K. STANDBY CONTROLLER ALL OK. RT SYSTEM WORKS OK IN STBY MODE.