As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FS 589.0 BETWEEN LBL9 AND LBL 27 FLOOR SUPPORT HAS POSSIBLE CORROSION (C-CHECK) RO 12/31/2019 DAMAGE FOUND TO BE OUT OF LIMITS. REMOVED AND MANUFACTURED PART PER BOMBARDIER DRAWING. -R PART MARKED "AVMAX P/N 60135031-165" INSTALLED MANUFACTURED PART AT F.S. 589.0 BETWEEN LBL 9 AND LBL 27 PER CRJ200 SRM.