As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT COWL FLAP DEPARTED AIRCRAFT IN-FLIGHT. SUSPECT CORROSION BETWEEN HINGE AND STEEL PIN. SUBMITTER RECOMMENDS IF ANY EXCESSIVE PLAY IS DETECTED IN HINGE AREA, REMOVE AND REPLACE HINGE, ESPECIALLY IF HINGE STILL LOOKS SERVICEABLE. THIS CORROSION IS HIDDEN BY STEEL PIN.