As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER REMOVAL BOLT ON RH WING FLAP OUTBD HINGE PIVOT AREA BS 331.1 WAS FOUND CORROSION, TOOL MARKS, ELONGATED HOLES ON HOUSING ON INBD/OUTBD FACE AT RH WING. RT WING FLAP OTBD HINGE PIVOT AREA WAS REPAIRED PER PRI 633572-14 REV 1 AND ER/A 633572-14 (1569563) (AIRCRAFT GROUNDED)