As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: EXCESSIVE NOISE DURING ENTIRE FLIGHT FROM LOWER LEFT CORNER OF DOOR 2R, VIBRATES THE FLOOR AND WALL. NOISE CAN BE HEARD ALL THE FROM FORWARD GALLEY TO 3L AND 3R, UPSETTING PASSENGERS. FOUND SEALANT MISSING ON 2R DOOR SCUFF PLATE ALLOWING SCUFF PLATE TO VIBRATE, APPLIED SEALANT AS NEEDED TO SCUFF PLATE IN ACCORDANCE WITH AMM 53-08-01.