The U.S. Army does not have a valid way of calculating Administrative Logistics Downtime (ALDT). This project was initiated to statistically determine a more efficient and accurate method. This project provided a computer program which is used to improve the accuracy in estimating the probabilities that a particular maintenance action is performed at each of the different maintenance levels by basing these estimates on similar equipment that is currently fielded. They system modeled utilized maintenance allocation charts for the U.S. Army’s HEMTT truck.