As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR FORMER P/N 601R318088-3 AT F/S 329.41 BETWEEN MID INTERCOSTAL DD4 AND DD5 HAS CORROSION (C-CHECK) RO 3/6/2020 REPLACED PAX DOOR FORMER AT FS329.41 BETWEEN INTERCOSTAL DD4 AND DD5 REF CRJ-900 SRM AND BOMBARDIER DWG. COMPLIED WITH TASK CARD. NO LEAKS NOTED.