As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER DOOR AFT STAIR WEB CORRODED. REMOVED AFT STAIR WEB STIFFENING ANGLES, LOCATED AND DRILLED NEW SERVICEABLE AFT STAIR WEB PN 601R317071-11 AND INSTALLED STIFFENING ANGLES ONTO NEW WEB IAW CRJ 900 SRM 51-40-11-001-001-A01 AND 51-42-06-001-001-A01 REFERENCE HN00119928 FOR INSTALLATION OF WEB ONTO PAX DOOR.