As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING UNSCHEDULED MAINTENANCE ON A UNRELATED ITEM ON THE AIRCRAFT, IT WAS NOTED THAT THE RH OUTBOARD SKIN BOTTOM SIDE IN LINE WITH THE PROP WASH HAD A SIZABLE CRACK GOING IN SEVERAL DIRECTIONS CAUSED FROM OIL CANNING. THE FLAP WAS REPAIRED IN ACCORDANCE WITH THE APPLICABLE STRUCTURAL MAINTENANCE MANUAL AND NO FURTHER INCIDENT WAS NOTED.