"Accelerated pension benefit payment" means a lump sum payment equal to 70% of the difference of the present value of the automatic annual increases to a Tier 1 member's retirement annuity and survivor's annuity using the formula applicable to the Tier 1 member and the present value of the automatic annual increases to the Tier 1 member's retirement annuity using the formula provided under subsection (b-5) and survivor's annuity using the formula provided under subsection (b-6).
"Eligible person" means a person who:
40 ILCS 5/14-147.6