As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HN00206830 DISCREPANCY: BACKUP SILL PN: SH670-31823-1 ON STR21L BETWEEN FS333.00 AND FS349.00 IS CORRODED. CORRECTIVE ACTION: REMOVED AND REPLACED BACK-UP SILL IAW CRJ-700 SRMS 51-40-11-001-001-A01, 51-42-06-001-001-A01, AND 51-42-21-001-001-A01.