What was found
ACFT DID NOT PRESSURIZE, RETURNED AND LANDED. INSPECTED & FOUND GROUND VALVE TO BE PARTIALLY IN THE OPEN POSITIION, MOVED VALVE TO CLOSED POSITION. NO FURTHER DEFECTS NOTED IAW AMM 21-24-18.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ACFT DID NOT PRESSURIZE, RETURNED AND LANDED. INSPECTED & FOUND GROUND VALVE TO BE PARTIALLY IN THE OPEN POSITIION, MOVED VALVE TO CLOSED POSITION. NO FURTHER DEFECTS NOTED IAW AMM 21-24-18.