This paper describes preliminary work on a case-study that will explore the maximization of system performance through the joint planning of production and maintenance. This joint planning aims to manage production output so that maintenance pit-stops and planned maintenance shutdowns can be postponed when demand is high and executed when demand is low. Prior to establishing and implementing the proposed maintenance policy, a baseline for maintenance performance must be set. It provides the metrics by which the effectiveness of the future maintenance policy can be measured. We analyze the plant data for the first three years of operation. We see a significant shortcoming in delivery, especially in the second year of operation, which recovered in the third year. This is characteristic of a ‘break-in’ period. With better maintenance planning, the production output can be optimized. Such a policy requires continuous monitoring of equipment condition, demand, and environmental conditions.