| S1103 | FATAL ERROR: S1103 | UNRECOGNIZED MODEL INITIALIZATION DIRECTIVE |
| Cause: | Either the directive contains a syntax error, or is no longer supported. | |
| Action: | Check the directive syntax and that the value specified is within the allowable limits. | |
| Remarks: | See Autodesk Nastran Reference Guide, Section 2, Initialization, for directive format. |