diff --git a/PROMS/VEPROMS.CSLA.Library/Extension/ItemExt.cs b/PROMS/VEPROMS.CSLA.Library/Extension/ItemExt.cs
index 9648bd7c..2bcd2483 100644
--- a/PROMS/VEPROMS.CSLA.Library/Extension/ItemExt.cs
+++ b/PROMS/VEPROMS.CSLA.Library/Extension/ItemExt.cs
@@ -2632,7 +2632,11 @@ namespace VEPROMS.CSLA.Library
 		private string AlphabeticalNumbering(int number)
 		{
 			string retval = string.Empty;
-			if (number > 26) retval += Letter((number - 1) / 26);
+			// originally the code would do double alpha as 'aa', 'ab', 'ac'.  This was changed to do 'aa', 
+			// 'bb', 'cc'.  The Westinghouse work required this and 16bit was tested and it worked the
+			// same way as the Westinghouse requirement. The original code to do 'aa', 'ab' was left here,
+			// commented out, in case a future plant needs it and then should tie it to a format flag.
+			if (number > 26) retval += Letter(1 + ((number - 1) % 26)); // Letter((number - 1) / 26);
 			retval += Letter(1 + ((number - 1) % 26));
 			return retval;
 		}
diff --git a/PROMS/fmtxml/WST1all.xml b/PROMS/fmtxml/WST1all.xml
index c220c1d3..51ff31b6 100644
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diff --git a/PROMS/fmtxml/WST2all.xml b/PROMS/fmtxml/WST2all.xml
index f44767da..906822eb 100644
Binary files a/PROMS/fmtxml/WST2all.xml and b/PROMS/fmtxml/WST2all.xml differ
diff --git a/PROMS/fmtxml/wst2.svg b/PROMS/fmtxml/wst2.svg
index 3e14d897..37f74a26 100644
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