As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER DOOR - INTERCOSTAL DD4 CORRODED ON BOTH THE UPPER AND LOWER SURFACE OF THE WEB BETWEEN FS320.16 AND THE AFT FORMER. (C-CHECK) RO: 07/07/2019 INSTALLED NEW PAX DOOR INTERCOSTAL DD4 IAW SRM. PERFORMED A LEAK CHECK OF WORKED AREAS IAW AMM. LEAK CHECK GOOD.