As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - BOTH LT & RT PACK SWITCHES HAD TO BE TURNED OFF THEN BACK ON MORE THAN ONCE TO GET THE PACK OFF LIGHTS TO EXTINGUISH (EICAS MESSAGE WAS THE SAME THEY FOLLOWED THE PACK OFF LIGHTS. ACCOMPLISHED BITE LT & RT PACK TEMP CONTROLLER & AIR SUPPLY MODULE IAW AMM21-51-00 NO FAULTS NOTED OK TO CONTINUE SERVICE.