As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER DOOR AFT INTERCOSTAL AT DD4 CORRODED. (C-CHECK) RO 7/10/2020 REMOVED THE CORROSION FROM THE PAX DOOR INTERCOSTAL AFT DD4 REF SRM. BLENDED AREA FOUND TO BE OUT OF LIMITS REF SRM. WET INSTALLED AND FILLET SEALED THE PAX DOOR AFT INTERCOSTAL DD4 REF SRM AND DRAWING. SEE CONTINUATION CARD FOR DETAILS. PRESSURE CHECK GOOD.