As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE IT WAS NOTED THAT THE NR 7 SLAT OTBD HOOK HAS 2 CRACKED RIBS ON THE SIDES OF THE ACTUATOR FWD MOUNT AT THE LOWER AFT RADIUS. REMOVED BOTH RIBS, STOP DRILLED CRACK IN OTBD RIB, PERFORMED HFEC, NO CRACKS NOTED. FABRICATED DOUBLER FOR OTBD RIB FROM 2024 T3 .40 INCH DIM 3 INCH BY 3.5 INCH. INSTALLED REPAIR ON OTBD RIB AND INSTALLED NEW INBD RIB. NO OTHER DEFECTS WERE NOTED. AIRCRAFT WAS RETURNED TO SERVICE.