As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT RECEIVED AN EICAS MESSAGE, LT PACK TEMP. RAN THE QRH TO SBY N. PERFORMED SYSTEM TEST OF LT PACK COOLING SYSTEM IAW B767 AMM 21-51-00. FOUND NO MESSAGES OR FAULTS ON LT PACK CONTROLLER AT THIS TIME. AIRCRAFT OK FOR SERVICE.