Contribution After Plan Termination

[Dougsbpc]

A small non-PBGC traditional defined benefit plan terminated 3 1/2 years ago without applying for a DL. I know, all assets need to be distributed within one year. However, they did have significant problems with one private investment in the plan. All is recovered now and they are ready to distribute.

Question: Can they make a deductible contribution now (so very late in the game) to make plan whole? Otherwise the owner employee will need to take a reduction in his benefit.

Thanks.