As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND MULTIPLE OVERSIZED HOLES FROM FS 310 TO FS 333 AT STRINGER 20L. (C-CHECK) RO 2/17/2021. REPLACED STRINGER 20L FROM FS 310 TO FS 333 IAW CRJ 200 SRM 51-42-06 AND 51-42-21. REMOVED FOR ACCESS AND REINSTALLED FS 319 AND FS 333 FRAME SECTORS IAW CRJ 200 SRM 51-42-06 AND 51-42-. PRESSURE CHECKS ARE GOOD. COMPLETED MAJOR REPAIR TASK CARD 51-900-1003-SKY AND FORM 337. NO CHANGES TO WEIGHT.