As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*STRINGER 20R INTERCOSTAL HAS EVIDENCE OF CORROSION FROM FS 319.70 TO FS 349.00. (C-CHECK RO: 6/20/21) / MULTIPLE ELEMENTS OF INTERCOSTAL AT STR20R FS319.7-349 CORRODED, "OUT OF LIMITS." REMOVED AND REPLACED INTERCOSTAL STR20R FS319.7-349 REF DRAWING SH670-31950 REV -V, CRJ700 SRM 51-42-06-001-001-A01, SRM 51-42-21-001-001-A01. COMPLIED WITH ST 51-900-1002-SKY.