Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/Assembly/CombinedAssemblyFailureMechanismSectionFactory.cs
===================================================================
diff -u -raf06db36c792b4a1ea98958be9413d237ad33776 -r9345e890865181247dd6c0b8ecee8d79a30c433b
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/Assembly/CombinedAssemblyFailureMechanismSectionFactory.cs	(.../CombinedAssemblyFailureMechanismSectionFactory.cs)	(revision af06db36c792b4a1ea98958be9413d237ad33776)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/Assembly/CombinedAssemblyFailureMechanismSectionFactory.cs	(.../CombinedAssemblyFailureMechanismSectionFactory.cs)	(revision 9345e890865181247dd6c0b8ecee8d79a30c433b)
@@ -135,6 +135,14 @@
                                .ToArray());
             }
 
+            GrassCoverSlipOffOutwardsFailureMechanism grassCoverSlipOffOutwardsFailureMechanism = assessmentSection.GrassCoverSlipOffOutwards;
+            if (failureMechanisms.Contains(grassCoverSlipOffOutwardsFailureMechanism))
+            {
+                inputs.Add(CreateCombinedSections(grassCoverSlipOffOutwardsFailureMechanism.SectionResults,
+                                                  assessmentSection, GrassCoverSlipOffOutwardsAssemblyFunc)
+                               .ToArray());
+            }
+
             return inputs;
         }
 
@@ -238,6 +246,14 @@
             }
         }
 
+        private static Func<GrassCoverSlipOffOutwardsFailureMechanismSectionResult, AssessmentSection, FailureMechanismSectionAssemblyCategoryGroup> GrassCoverSlipOffOutwardsAssemblyFunc
+        {
+            get
+            {
+                return (sectionResult, assessmentSection) => GrassCoverSlipOffOutwardsFailureMechanismAssemblyFactory.GetSectionAssemblyCategoryGroup(sectionResult);
+            }
+        }
+
         #endregion
     }
 }
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