Abstract
These simulation models of this first trial are very simple and their input datum of this GPSS digital simulation are only two indices due to a lot of maintenance reports and failure ones. It is postulated for the marine engine maintenance system that the engine system has no redundancy and the maintenance system member is homogeneous. Furthermore the following assumptions are accepted for the above simulation models; continuity or discontinuity of maintenance duty hour, that is, MODEL I (24 Hour Maintenance Model) and MODEL II (8 Hour Maintenance Model) which have the four maintenance levels. Some useful results and informations were obtained from the interesting and simple simulation programme. They are the availability of the engine system and the utilization of the maintenance system. Their daily maintenance datum are very varing but the average values during one year do not depend upon the difference between the two models and affected considerably by the member of the maintenance system and by the up-ratio of reliability of the engine system.
