As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LEFT LOWER WING PLANK HAS CORROSION AT THE FUEL TANK ACCESS CUTOUT FOR PANEL 510AB HOLE NR 2 AT WS 12.245 APPROX .005 INCH DEEP IN SEVERAL SPOTS IN THE CRITICAL AND NON CRITICAL AREAS OF THE FORWARD, AFT, INBOARD AND OUTBOARD HOLE EDGES. MAINTENANCE REPAIRED FUEL TANK ACCESS HOLE CUTOUT WING PLANK IAW BOMBARDIER INC REO 601R-57-21-030 REV D. (M)