The preventive maintenance activity is important thing in production system especially for a
continuous production process, for example in fertilizer industry. Therefore, it has to be considered in
production-distribution planning. This paper considers the interval of production facility’s preventive
maintenance in production-distribution planning of multi echelon supply chain system which consists of a
manufacturer with a continuous production process, a distribution center, a number of distributors and a
number of retailers. The problem address in this paper is how to determine coordinated productiondistribution
policies that considers the interval of production facility’s preventive maintenance, and
customer demand only occurred at retailers and it fluctuates by time. Based on model of Santoso, et al.
(2007), using the periodic review inventory model and a coordinated production and replenishment policies
that are decided by central planning office and it must be obeyed by all entities of multi-echelon supply
chain, the integrated production-distribution planning model is developed to determine the production and
replenishment policies of all echelon in the supply chain system in order to minimize total system cost
during planning horizon. Total system cost consists of set-up/ordering cost, maintenance cost, holding cost,
outsourcing cost and transportation cost at all of entities. With considering preventive maintenance and
there is one production run over the planning horizon, the replenishment cycle at distribution center,
distributors and retailers that are found out are greater than the basic model. Also, the multiplication of
replenishment cycle at distribution center in production cycle that is found out is greater than the basic
model but the multiplication of replenishment cycle at retailers in its distributor are smaller than the basic
model
