As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FS 589 FRAME IS CORRODED BETWEEN STRG 18L TO 19L. C-CHECK RO 11/24/2020. REPAIRED FRAME SEGMENT BY REPLACEMENT, IAW CRJ 200 SRM. COMPLETED TASK CARD AND ATTACHED COMPLETED FORM 337. NO WEIGHT CHANGE. REFERENCE CONTINUATION CARD FOR WORK PERFORMED.