As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CUSTOMER REPORTED A CRACK IN THE SIDE PANEL OF THEIR AUXILIARY FUEL TANK AND WERE ADVISED TO RETURN FOR EVALUATION. UPON INSPECTION OF INTERIOR OF TANK ASSY IT WAS FOUND SEVERAL WELDS ATTACHING THE SIDE PANEL TO THE SUPPORTING FRAMES WERE BROKEN. ALSO, THE INTERIOR SIDE PANEL ALSO SHOWED SIGNS OF WEARING FROM RIVET HEAD.