As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DD7 FWD INTERCOSTAL HAS MULTIPLE AREAS OF CORROSION (C-CHECK RO 9/8/2021) REMOVED AND REPLACED WITH NEW DD7 FWD INTERCOSTAL HAD MULTIPLE AREAS OF CORROSION REF CRJ-900 SRM 51-42-06-001-001-A01 AND DWG#601R31702 REV -N.COMPLIED WITH 51-900-1002-SKY PRESSURE LEAK CHECK GOOD.