As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR INTERCOSTAL AFT OF DOOR 3RD FROM HINGE P/N 601R31902-317 CORRODED. - LOCATED & DRILLED NEW INTERCOSTAL P/N 601R31902-317 IAW CRJ 900 SRM 51-40-11-001-001-A01, INSTALLED NEW INTERCOSTAL IAW CRJ 900 SRM 51-42-06-001-001-A01 REV 38 7-25-21