In Halstead v. City of Flint, 127 Mich App 148, 154-155; 338 NW2d 903 (1983), the Court examined the constitutionality of a pension enhancement ordinance passed by the Flint City Council. In Halstead, the plaintiffs, who were pension beneficiaries that were excluded from the enhancements, argued that the ordinance denied them equal protection and violated Const 1963, art 9, 24. Id. at 152. In examining the argument that the ordinance violated art 9, 24, the Court held that the ordinance did not burden the Flint retirement system's current service funding with an unfunded liability because the service funding had a surplus and the cost of the enhancement would only require approximately one-third of the surplus. Id. at 155-156.