Amending Actuarial Equivalent Interest

[Dougsbpc]

Have a small DB plan that will be terminating in the next few months.

Is there any problem amending act eqiv interest from 6.5% pre and post to 5.5%? There should not be any cut-back issues as everyone will be getting more not less. I know timing for the minimum present value cannot be utilized if changed within 12 months, but not aware of anything for actuarial equivalence.

[Andy the Actuary]

Potential (but unlikely) 401(a)(4) problem related to grants of past service.