What was found
GDL AFT CARGO DOOR AIR LEAK. FLIGHT RETURNED GDL LANDED WITHOUT INCIDENT. REPOSITIONED AFT CARGO DOOR SEAL. SYSTEM GROUND CHECKED NORMAL OPERATION CLOSED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
GDL AFT CARGO DOOR AIR LEAK. FLIGHT RETURNED GDL LANDED WITHOUT INCIDENT. REPOSITIONED AFT CARGO DOOR SEAL. SYSTEM GROUND CHECKED NORMAL OPERATION CLOSED.