Sec. 8.08. SUBSEQUENT DISABILITY OF DROP PARTICIPANT. A member who participates in the DROP becomes ineligible for any disability benefits described by Article 6 of this Act. Instead, if the board of trustees determines that the member would have been eligible for disability retirement, the board of trustees shall grant a normal service retirement annuity as described by Section 5.04 of this Act and shall pay the member both the service retirement annuity and a distribution of the DROP account as described by Section 8.05 of this Act.