diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
index 682eb80234..9a6857bea4 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
@@ -443,7 +443,7 @@ public class BSCharacter : PhysicsActor
 
         Dictionary<uint, ContactPoint> contactPoints = new Dictionary<uint, ContactPoint>();
         contactPoints.Add(collidingWith, new ContactPoint(contactPoint, contactNormal, pentrationDepth));
-        CollisionEventUpdate args = new CollisionEventUpdate(LocalID, (int)type, 1, contactPoints);
+        CollisionEventUpdate args = new CollisionEventUpdate(contactPoints);
         base.SendCollisionUpdate(args);
     }
 
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
index bb8d601ad8..8782e6277b 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
@@ -1350,7 +1350,7 @@ public sealed class BSPrim : PhysicsActor
         // create the event for the collision
         Dictionary<uint, ContactPoint> contactPoints = new Dictionary<uint, ContactPoint>();
         contactPoints.Add(collidingWith, new ContactPoint(contactPoint, contactNormal, pentrationDepth));
-        CollisionEventUpdate args = new CollisionEventUpdate(LocalID, (int)type, 1, contactPoints);
+        CollisionEventUpdate args = new CollisionEventUpdate(contactPoints);
         base.SendCollisionUpdate(args);
     }
 }
diff --git a/OpenSim/Region/Physics/Manager/PhysicsActor.cs b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
index 8f5abdea30..362f997e18 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsActor.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
@@ -66,47 +66,29 @@ namespace OpenSim.Region.Physics.Manager
         }
     }
 
+    /// <summary>
+    /// Used to pass collision information to OnCollisionUpdate listeners.
+    /// </summary>
     public class CollisionEventUpdate : EventArgs
     {
-        // Raising the event on the object, so don't need to provide location..  further up the tree knows that info.
-
         /// <summary>
         /// Number of collision events in this update.
         /// </summary>
         public int Count { get { return m_objCollisionList.Count; } }
 
-        public int m_colliderType;
-        public int m_GenericStartEnd;
-        //public uint m_LocalID;
-        public Dictionary<uint, ContactPoint> m_objCollisionList = new Dictionary<uint, ContactPoint>();
+        public Dictionary<uint, ContactPoint> m_objCollisionList;
 
-        public CollisionEventUpdate(uint localID, int colliderType, int GenericStartEnd, Dictionary<uint, ContactPoint> objCollisionList)
+        public CollisionEventUpdate(Dictionary<uint, ContactPoint> objCollisionList)
         {
-            m_colliderType = colliderType;
-            m_GenericStartEnd = GenericStartEnd;
             m_objCollisionList = objCollisionList;
         }
 
         public CollisionEventUpdate()
         {
-            m_colliderType = (int) ActorTypes.Unknown;
-            m_GenericStartEnd = 1;
             m_objCollisionList = new Dictionary<uint, ContactPoint>();
         }
 
-        public int collidertype
-        {
-            get { return m_colliderType; }
-            set { m_colliderType = value; }
-        }
-
-        public int GenericStartEnd
-        {
-            get { return m_GenericStartEnd; }
-            set { m_GenericStartEnd = value; }
-        }
-
-        public void addCollider(uint localID, ContactPoint contact)
+        public void AddCollider(uint localID, ContactPoint contact)
         {
             if (!m_objCollisionList.ContainsKey(localID))
             {
diff --git a/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs b/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
index 55e14bc8de..b6e1c4ec0b 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
@@ -1227,7 +1227,7 @@ namespace OpenSim.Region.Physics.OdePlugin
 //                m_log.DebugFormat(
 //                    "[PHYSICS]: Adding collision event for {0}, collidedWith {1}, contact {2}", "", CollidedWith, contact);
 
-                CollisionEventsThisFrame.addCollider(CollidedWith, contact);
+                CollisionEventsThisFrame.AddCollider(CollidedWith, contact);
             }
         }
 
diff --git a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
index 4ef731d5d0..036388538c 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
@@ -3020,7 +3020,7 @@ Console.WriteLine(" JointCreateFixed");
 
         public void AddCollisionEvent(uint CollidedWith, ContactPoint contact)
         {
-            CollisionEventsThisFrame.addCollider(CollidedWith, contact);
+            CollisionEventsThisFrame.AddCollider(CollidedWith, contact);
         }
 
         public void SendCollisions()