As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*BACKUP SILL (INTERCOSTAL) AT APPROX. FS.333-FS.349, STRG 21L HAS MULTIPLE SPOTS OF CORROSION (C CHECK RO 1/18/2022) REPLACED WITH NEW REPLACEMENT BACK UP SILL (P/N SH670-31823-1) ONTO STGR21L BETWEEN FS333.00 AND FS349.00 LH. REF BOMBARDIER DWG# SH670-31810 REV Y AND CRJ700 SRM 51-42-06-001-001 A01 AND 51-42-21-001-001 A01. COMPLIED WITH 51-900-1002-SKY