As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) EXCESSIVE FUEL STAINS NOTED ALONG LOWER SURFACE OF WING EXTENDING FROM ROOT ALONG REAR SPAR THE FULL LENGTH OF FLAP AT STA 100.5. FURTHER INVESTIGATION FOUND BOTH INBOARD STRAPS HAD SEPARATED AND WERE NO LONGER SECURING THE TANK. LEAK WAS CAUSED BY OUTBOARD STRAPS LEANING IN TOWARD THE OUTBOARD SIDE OF TANK AND WEARING A HOLE INTO TANK.