As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
* CORROSION ON RH FLOOR SILL FS280-FS319 FWD AND AFT SIDE (C-CHECK RO 7/7/2021) CORROSION ON RH FLOOR SILL FS280-FS319 FOUND TO BE OUT OF LIMITS. REMOVED AND REPLACED R/H FLOOR SILL FROM FS280 TO FS319 REF: CRJ900 SRM 51-42-06-001-001-A01, SRM 51-42-21-001-001-A01, SRM 51-42-13-001-001-A01, DWG: SH690-32170 REV: AD. NO LEAKS NOTED. COMPLIED WITH TASK CARD 51-900-1002-SKY.