As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOOR SUPPORTS (4EAS) LOCATED BTW FS=280 TO FS=295 AND RBL17'' AND RBL 38'', FS=295 AND RBL 4'', FS=319 AND RBL 4'' AT FUSELAGE FLOOR STRUCTURE. FLOOR SUPPORTS (4EAS) LOCATED BTW FS=280 TO FS=295 AND RBL17'' AND RBL 38'', FS=295 AND RBL 4'', FS=319 AND RBL 4'' AT FUSELAGE FLOOR STRUCTURE ARE OUT OFF LIMITS PER CRJ-900 SRM 53-21-43-101-001-A03 THEREFORE WERE REPLACED PER CRJ-900 SRM 51-42-21-001-001-A01