As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A ROUTINE INSP, A FUEL STAIN WAS NOTICED IN THE LT AUX TANK AREA. THE TANK WAS REMOVED AND INSPECTED. THERE WERE CRACKS FOUND AT SEVERAL OF THE WELD POINTS WHERE AN INTERNAL BAFFLE IS WELDED TO THE BOTTOM PANEL OF THE TANK. A NEW TANK (PN-D60-2814-11-00) WAS INSTALLED.