As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F.S. 333 FRAME IS CORRODED FROM STRINGER 18R TO 17R. C-CHECK RO 8/29/2020. REMOVED AND INSTALLED NEW FRAME SECTORS AT FS333.00 STRINGER 18R TO 23R IAW CRJ-200 SRM, DRAWING AND SKYWEST CARD. COMPLETED FORM M-337. WEIGHT AND BALANCE NOT AFFECTED.