As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING SB670-53-045, FOUND RH FRAME SECTOR AT FS220 FAILED NDT (CRACKED). REMOVED AND INSTALLED NEW SEVICEABLE RH FS220 FRAME, UPPER FRAME SECTOR PN: CC670-34146-6 IAW CRJ900-SRM 51-42-06-001-001-A01, 51-42-21-001-001-A01, 51-40-11-001-001-A01. THIS IS A PERM REPAIR