As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IT WAS DISCOVERED THAT THE TOTAL OF EIGHT FUEL VENT FITTINGS AS INSTALLED IAW DESIGN HAVE APPROXIMATELY 2 THREAD ENGAGEMENT INTO THE DOME NUT. IT SHOULD BE 1.5 TREADS PROTRUDING ABOVE THE NUT IAW REQUIREMENTS. AIRCRAFT`S ARE AFFECTED BY THIS ISSUE. TRIAGE IS SCHEDULED TO ASSESS THE CRITICALITY OF THE DEFECT.