| T2309 | FATAL ERROR: T2309 | PFA MATERIAL INTERFACE NOT SUPPORTED IN SPECIFIED SOLUTION |
| Cause: | A Helius PFA material model via the MATPFA Bulk Data entry was specified in a solution sequence other than nonlinear static. | |
| Action: | Either specify a nonlinear static solution or use a different material card. | |
| Remarks: | None. |