| T2207 | FATAL ERROR: T2207 | elemtype ELEMENT PROPERTY ID id NOT UNIQUE |
| Cause: | Property identification number id is referenced more than once on the specified element type property Bulk Data entry. | |
| Action: | Change the identification number to a unique value. | |
| Remarks: | See Autodesk Nastran Reference Guide, Section 4, Bulk Data, for entry format. |