As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT FS 280 WEB HAS BULGE WITH EVIDENCE OF INTERNAL EXFOLIATION CORROSION AT INBOARD EDGE/FLOOR LEVEL. C-CHECK RO 11/3/2020. REPLACED CORRODED LT 280 WEB INBOARD EDGE AT FLOOR LEVEL WITH A SERVICEABLE UNIT/SPLICE REPAIR, REF CRJ-700. COMPLIED WITH TASK CARD, SEE CONTINUATION CARD FOR DETAILS.