As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3406 . DURING THE DRILL-OUT PROCEDURE, THE UNDERLYING STR-7R WAS CONTACTED BY THE DRILL. THE SUBJECT STRINGER HAS DRILL START TOOLING DAMAGE ON THE SKIN ATTACH FLANGE OUTER RADIUS AREA. CORRECTIVE ACTION: REF ER/A 601711-14. (2376578)