As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A** ATB ** AT FL 350 "LEFT PACK TEMP" EICAS MESSAGE. RAN "PACK TEMP" QRH CHECKLIST. "PACK TEMP" REMAINED LEFT PACK OFF.SAT COM FLIGHT CONTROL AND MAINTENANCE.R AN R TRIM AIR SUPPLY CK VALVE IAW MM 21-61-05-401 CK'S NORMAL.