Index: Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingFailureMechanism.cs
===================================================================
diff -u -rde8e5c0dd97c9e53a07e905a0f59617e570b2259 -rce8424c77c708edc0bb2150a9a6a0e75dad629fa
--- Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingFailureMechanism.cs	(.../PipingFailureMechanism.cs)	(revision de8e5c0dd97c9e53a07e905a0f59617e570b2259)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingFailureMechanism.cs	(.../PipingFailureMechanism.cs)	(revision ce8424c77c708edc0bb2150a9a6a0e75dad629fa)
@@ -100,6 +100,12 @@
             sectionResults.Add(new PipingFailureMechanismSectionResult(section));
         }
 
+        public override void ClearAllSections()
+        {
+            base.ClearAllSections();
+            sectionResults.Clear();
+        }
+
         public IEnumerable<PipingFailureMechanismSectionResult> SectionResults
         {
             get