As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE GETTTING ACCESS TO PAX DOOR HINGE FOUND CORROSION ON FWD FORMER FS311.75 BETWEEN INTERCOSTAL DD5 AND DD6. (C-CHECK) RO 3/13/2020 REMOVED AND REPLACED PAX DOOR FWD FORMERS AT FS311.75 REF BOMBARDIER DWG, CRJ-200 SRM. LEAK CHECK GOOD.