A.R.S. § 38-889: Guaranteed minimum aggregate payout

If all pension payments permanently terminate before an aggregate amount equal to the retired member's or deceased member's accumulated member contributions has been paid, the difference between the amount of accumulated member contributions and the aggregate amount of pension payments made shall be paid to the individual or individuals whom the member may have named on a form provided by and filed with the retirement plan. If no such named individual survives, the difference shall be paid to the legal representative of the last surviving individual who was being paid a pension or the last surviving named individual.