What was found
LEFT ENVIRO FAIL WOULD NOT RESET UNABLE TO PRESSURIZE. REPLACED LT PRECOOLER TEMP SENSE LINE FILTER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT ENVIRO FAIL WOULD NOT RESET UNABLE TO PRESSURIZE. REPLACED LT PRECOOLER TEMP SENSE LINE FILTER.