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 FS310.00 €“ FS319.00 IS CORRODED. (C-CHECK RO 8/14/2022) REMOVED AND REPLACED STR 21L BACK-UP SILL FROM FS310.00 TO FS333.00 REF. DRWG SH670-31810 REV. Y AND CRJ 700 SRM 51-42-06-001-001-A01. COMPLIED WITH TASK CARD 51-900-1002-SKY. SEE CONTINUE CARD FOR DETAILS OF WORK PERFORMED.