As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE REMOVING CORROSION ON STR20L BETWEEN FS310 - FS333, FOUND CRACK ON FRAME SECTOR FS333 AT STR20L (C-CHECK RO 4/4/2021) REMOVED AND REPLACED CRACKED FRAME AT FS333 BETWEEN STR18L - STR21L REF CRJ700 SRM 51-42-06-001-001-A01, SRM 51-42-21-001-001-A01, DRAWING SH670-31810 REV Y. COMPLIED WITH ST 51-900-1002-SKY. RESTORED FINISH AND CIC. LEAK CHECKS GOOD.