As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERCOSTAL AT FS394.00 TO FS409.00, JUST LEFT OF STR27 HAS CORROSION. (C-CHECK) RO 3/13/2020 REMOVED AND INSTALLED NEW SERVICEABLE INTERCOSTAL LOCATED BETWEEN FS394.00 - FS409.00 AND COMMON TO STGR 27L. REF BOMBARDIER DRAWING AND CRJ200 SRM. PRESSURE LEAK CHECK GOOD.