As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE IS WAS NOTED THAT LT OTBD AFT FLAP HAS DELAMINATION AT WBL 300. DAMAGE WAS REMOVED APPROX DIM 5.5 INCH BY 2 INCH, FABRICATED FILLER FROM 2024 T3 .016 INCH DIM 5.5 INCH BY 2 INCH AND DOUBLER FROM 2024 T3 .016 DIM 7 INCH BY 3.5 INCH. BONDED REPAIR, CLEANED, SEALED AND FINISHED. NO OTHER DEFECTS WERE NOTED. AIRCRAFT WAS RETURNED TO SERVICE.