As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(SUPP-CLOSED) FLIGHT NUMBER 73. DURING CRUISE LEFT PACK TEMP EICAS MESSAGE AND PACK INOP LIGHT ILLUMINATED IN AUTO MODE/MANUAL MODE OPERATES NORMAL. MAINTENANCE REMOVED AND REPLACED LEFT PACK TEMP CONTROLLER PER MM 21-51-14-4. OPERATIONAL CHECKS NORMAL.