As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOOR SUPPORTS LOCATED BTW FS280 TO FS295 & LBL 17'', FS379 TO FS364 & LBL17'' AT CPAX FLOOR STRUCTURE (W1) FLOOR SUPPORTS LOCATED BTW FS280 TO FS295 & LBL 17'', FS379 TO FS364 & LBL17'' AT CPAX FLOOR STRUCTURE (W1) WERE EVALUATED OUT OF LIMITS PER CRJ900 SRM 51-10-06-001-001-A01 AND WERE REPLACED PER CRJ900 SRM 51-42-21-001-001-A01