As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
* THE BACK UP SILL BETWEEN FS319.00 AND FS333.00 AT STRINGER 21L HAS MULTIPLE LOCATIONS OF CORROSION. (MARKED) (C-CHECK) RO:3/29/2020 INSTALLED NEW BACK UP SILL (P/N SH670-31822-1) BETWEEN FS319.00 AND FS333.00 AT STGR 21L PER BOMBARDIER DWG AND CRJ700 SRM. LEAK CHECK GOOD COMPLIED WITH SKYWEST TASK CARD.