As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE RBL 22.5 VERTICAL STIFFENER ON THE CENTER WING FRONT SPAR (FS 983) WAS FOUND WITH A TYPICAL CRACK EMANATING FROM A LIGHTENING HOLE IN THE STIFFENER WEB NEAR THE UPPER END. THE STIFFENER WAS REMOVED AND REPLACED WITH A NEW STIFFENER MANUFACTURED WITHOUT LIGHTENING HOLES PER ER/A 368106-14AD.