As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERCOSTAL AT STRINGER 20R BETWEEN FS. 333 TO FS. 349 IS CORRODED ON BOTTOM EDGE. INSTALLED NEW SERVICEABLE INTERCOSTAL AT STR 20R FS 333-349 IAW CRJ700 SRM 51-40-11-001-001-A01, 51-42-06-001-001-A01, 51-42-21-001-001-A01. WVAC EMP # 56392