As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUSPECT CRACK IN THE FUSELAGE FORMER/FRAME AT APPROX. FS333 AT A TOOLING HOLE AT APPROX. STGR1L (MARKED ON AFT SIDE). C-CHECK RO 9/1/2020. REMOVED AND INSTALLED NEW FUSELAGE FORMER/FRAME PN 601R32004-41 AT APPROX. FS333 AT STGR1L TO STGR4L WITH SEALANT, SOLID FASTENERS AND HI-LITE FASTENERS. REF: ENG. DWG. AND CRJ-200 SRM. SEE CONTINUATION CARD FOR DETAILS. PRESSURE CHECK GOOD.