As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRINGER 26L HAS MULTIPLE SPOTS OF CORROSION FROM FS 364.00 TO FS 349.00. (C-CHECK) RO 2/21/2021. FOUND DAMAGE TO INTERCOSTAL 27L FS 349 TO 364 TO BE OUT OF LIMITS, REMOVED INTERCOSTAL AND INSTALLED A NEW INTERCOSTAL IAW CRJ 200 SRM 51-42-06 AND 51-42-21.