Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/FileImporters/ReferenceLineImporter.cs
===================================================================
diff -u -rfcc49aac894f989182fb9faa487e50a585fbed03 -rc6a3cd9e25138d35bf0881f3ff6df9dfe1776fd2
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/FileImporters/ReferenceLineImporter.cs	(.../ReferenceLineImporter.cs)	(revision fcc49aac894f989182fb9faa487e50a585fbed03)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/FileImporters/ReferenceLineImporter.cs	(.../ReferenceLineImporter.cs)	(revision c6a3cd9e25138d35bf0881f3ff6df9dfe1776fd2)
@@ -232,10 +232,15 @@
             }
         }
 
-        private void ClearFailureMechanismSections(IFailureMechanism failureMechanisms)
+        private void ClearFailureMechanismSections(IFailureMechanism failureMechanism)
         {
-            // TODO: WTI-365 - Clear all 'vakindelingen'
-            //changedObservables.Add(clearedInstance);
+            failureMechanism.ClearAllSections();
+
+            var observableFailureMechanism = failureMechanism as IObservable;
+            if (observableFailureMechanism != null)
+            {
+                changedObservables.Add(observableFailureMechanism);
+            }
         }
 
         private void ClearHydraulicBoundaryOutput(AssessmentSectionBase assessmentSection)