What was found
DURING CRUISE LEFT PACK EICAS MSG AFTER MID CABIN TEMP SELECTED TO LOWER TEMP, C/W QRH CONTINUED IN STBY MODE. REMOVED AND REPLACED LT PACK TEMP CONTROLLER IAW AMM 31-51-14.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CRUISE LEFT PACK EICAS MSG AFTER MID CABIN TEMP SELECTED TO LOWER TEMP, C/W QRH CONTINUED IN STBY MODE. REMOVED AND REPLACED LT PACK TEMP CONTROLLER IAW AMM 31-51-14.