What was found
FLT 43 - DEN - AIR TURN BACK, FLIGHT CREW REPORTED AIRCRAFT WOULD NOT PRESSURIZE. REPLACED LT PACK TEMP CONTROL VALVE AND CHECKED OK. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT 43 - DEN - AIR TURN BACK, FLIGHT CREW REPORTED AIRCRAFT WOULD NOT PRESSURIZE. REPLACED LT PACK TEMP CONTROL VALVE AND CHECKED OK. (M)