As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR INTERCOSTAL DD4 CORRODED BETWEEN FS 320.163 AND FS 338.963. INSTALLED NEW INTERCOSTAL DD4 ON PAX DOOR BETWEEN FS 320.163 AND FS 338.963, IAW CRJ200 SRM'S 51-42-06 AND 51-42-21. AFTER REMOVING CORRODED INTERCOSTAL AT DD4, IAW CRJ200 SRM'S 51-42-06 AND 51-42-21.