As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GNDED. DURING DEPLANING A PAX INFORMED THE FLIGHT CREW THAT AN OBJECT HAD LIBERATED FROM THE FLAPERON SEAL OF THE RT WING DURING FLIGHT. INSPECTED WING & CONFIRMED THE RT INBD UPPER FLAPERON SEAL WAS MISSING. INSTALLED NEW SEAL IAW AMM 27-11-14.