As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRESSURE FLOOR PANEL AR FS542.00 RBL 42 HAS CORROSION. AIRCRAFT REMOVED FROM SERVICE. REMOVED CORROSION ON PRESSURE FLOOR PANEL AT FS542.00 RBL 42. EVALUATED BLEND AREA AND FOUND TO BE WITHIN ALOWABLE LIMITS. HFCC INSPECTION PERFORMED WITH NO INDICATIONS NOTED. REF ASAP EA # CRJ253-01566 REV IR, DATED 02/02/2021.