As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RH FLOOR SILL FROM FS 559+112 TO FS 621.00 IS FOUND TO BE OUT OF LIMITS ON MX TRANS# 20678730 JOB# 2796191 OP# 272. REPLACE FLOOR SILL (C-CHECK) RO 4/21/2020 REMOVED AND REPLACED RH FLOOR SILL FROM FS 559+112 TO FS 621.00. REF: CRJ-200 SRM, REO AND DWG.