As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BWI - FLT 1121 - AFTER TAKEOFF, CREW HEARD A LOUD BANGING SOUND AT THE R1 DOOR. FLIGHT DIVERTED TO BWI AND LANDED WITHOUT INCIDENT. LANDING WEIGHT WAS 101,000 LBS. MAINTENANCE REMOVED INNER COSMETIC SEAL THAT WAS CAUGHT UNDER THE DOOR AND PROTRUDING OUTSIDE THE AIRCRAFT. NO DAMAGE WAS NOTED TO THE AIRCRAFT. AN OVERWEIGHT LANDING INSPECTION WAS PERFORMED. (M)