As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER REMOVAL OF INTERCOSTAL FOUND CORROSION AT STR20R BETWEEN FS 319 TO FS 349. REMOVED STR20R BETWEEN FS 319 TO FS 349 IAW CRJ-900 SRM 51-42-06-001-001-A01 CORRECTIVE ACTION: INSTALLED STR20R BETWEEN FS 319 TO FS 349 IAW CRJ 900 SRM 51-42-06/21-001-001-A01.