As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 3C CHECK FOUND STRINGER 25 LEFT BETWEEN FS 295.00-FS 310.00 CORRODED. THE AIRCRAFT WAS REMOVED FROM SERVICE. COMPLIED WITH STRINGER SPLICE REPAIR IAW CRJ STRUCTURAL REPAIR MANUAL 53-00-03-991-803 FIGURE 10. THE AIRCRAFT WAS RETURNED TO SERVICE.