As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BACK UP SILL AT FS 319.00 STRG 21L HAS CORROSION (C-CHECK RO 1/13/2022) REMOVED CORRODED BACK UP SILL AT FS 319.00 STGR 21L AND REPLACED WITH NEW BACK UP SILL PER CRJ700 SRM 51-42-06-001-001-A01. PRESSURIZATION CHECK WILL BE PERFORM UNDER CAMP.23531501, NO FURTHER ACTION REQUIRED.