As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRINGER TIE AT FS STA 661+90 TO 667 STGR 19R CORRODED. C-CHECK RO 12/26/2020. STRINGER TIE AT FS 661+90-667 AND 19R REMAINING MATERIAL IS BEYOND ALLOWABLE DAMAGE LIMITS. REMOVED AND INSTALLED NEW 19R STRINGER TIE AT FS 661+90 AND 667, REF CRJ 900 SRM AND DWG. COMPLETED FORM M-337. SEE CONTINUATION CARD FOR DETAILS. LEAK CHECK GOOD, NO LEAKS NOTED.