As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE PERFORMING INSPECTIONS IT WAS NOTED THAT THE RIGHT WING NR 7 SLAT I/B TRACK CUTOUT IS CRACKED. STOP DRILLED CRACK, PERFORMED HFEC AND VERIFIED CRACK CONTAINMENT. FABRICATED DOUBLER FROM 2024 T 3 .063" DIM 6" X 6.5" AND INSTALLED REPAIR. NO OTHER DEFECTS WERE NOTED. AIRCRAFT WAS RETURNED TO SERVICE.