As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW DIVERTED THE FLIGHT DUE TO THE AIRCRAFT DEVELOPING A FUEL LEAK WHILE ENROUTE. MAINTENANCE FOUND THE FUEL FILTER HOUSING COVER ATTACHMENT LOOSE DUE TO A MIGRATED INSERT. THE FUEL FILTER HOUSING WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.