As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VERTICAL BEAM AT RBL 18 AT FS409+128 IS CRACKED AT THE BOTTOM O/B SIDE AGAINST THE PRESSURE BULKHEAD IN THE FWD ECS COMPARTMENT (C-CHECK) RO 2/10/2020 PERFORMED CUT OUT DAMAGE SURFACE , FABRICATED PARTS AND INSTALLED IAW CRJ200 BOMBARDIER REO.