This study shows the application of network planning tool for planning, scheduling and control of maintenance operations. Taking into account that the maintenance process is a project as it consists of a set of actions that consume specific resources and have a data specified achievement. Thus you can create a represents the maintenance process activities. This diagram helps to maintenance process scheduling, additionally, it allows activity time maintenance. For this purpose, we used the project. Evaluating and Review technique, because it respond to order delivery vacillation.