As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BACK-UP SILL STGR21L FROM FS333.00 €“ FS349.00 IS CORRODED. (C-CHECK RO 8/14/2022) REMOVED AND INSTALLED NEW BACK-UP SILL FROM FS333.00 TO FS349.00 REF. CRJ 700 SRM 51-42-06-001-001-A01 AND DWG:SH670-31810 REV Y. COMPLIED WITH TASK CARD 51-900-1002-SKY