Index: dam classic/trunk/src/Stability/MissingPreconsolidationStressRepairer.cs
===================================================================
diff -u -r190 -r230
--- dam classic/trunk/src/Stability/MissingPreconsolidationStressRepairer.cs	(.../MissingPreconsolidationStressRepairer.cs)	(revision 190)
+++ dam classic/trunk/src/Stability/MissingPreconsolidationStressRepairer.cs	(.../MissingPreconsolidationStressRepairer.cs)	(revision 230)
@@ -1,7 +1,4 @@
-using System.Diagnostics.Contracts;
-using Deltares.Geotechnics;
 using Deltares.Geotechnics.Soils;
-using Deltares.Standard;
 using Deltares.Standard.Language;
 using Deltares.Standard.Validation;
 
@@ -21,8 +18,6 @@
 
         public void Repair(object subject, string property, string id)
         {
-            CheckPreconditions(subject, property, id);
-
             var model = (StabilityModel) subject;
 
             if (model.SoilProfile.PreconsolidationStresses.Count == 0)
@@ -33,21 +28,7 @@
 
         public string GetRepairDescription(object subject, string property, string id)
         {
-            CheckPreconditions(subject, property, id);
-
             return this.Translate("MissingPreconsolidationStressRepairerDescription");
-        }
-
-        /// <summary>
-        /// Checks the preconditions for this class.
-        /// </summary>
-        /// <param name="subject">The object to be repaired.</param>
-        /// <param name="property">The relevant property.</param>
-        /// <param name="id">The identifier for the type of problem.</param>
-        private static void CheckPreconditions(object subject, string property, string id)
-        {
-            Contract.Requires(subject is StabilityModel);
-            Contract.Requires(id == NoPreconsolidationStressDataId);
-        }
+        }        
     }
 }
\ No newline at end of file