As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) LH WING FUEL TANK LEAKING. INVESTIGATION FOUND THAT THE FUEL TANK PANEL ANCHOR NUTS WERE THE INCORRECT TYPE. THE CORRECT NUTS PNO NAS1473A3 ANCHOR NUTS ARE SEALED BUT THE FITTED ANCHOR NUTS PNO MS21047L3 ARE UNSEALED. MANUFACTURING ERROR. UNAPPROVED PART. PERSONNEL/MAINTENANCE ERROR.