JMAT_V6_N3_RP2 S.Z. Taj Syed Mohd Rizwan B.M. Alkali D.K. Harrison G. Taneja Journal on Mathematics 2277-5137 6 3 12 21 Cable Plant, Failure, Repair, Minor/Major Scheduled Preventive Maintenance, Probabilistic Modeling, Semi Markov Process, Regenerative Process The paper presents probabilistic modeling and analysis of a cable plant subsystem with two identical machines operating in parallel. Seven year's failure data of the cable plant depicts three types of maintenances for the subsystem: repair, minor preventive maintenance and major preventive maintenance. The subsystem undergoes repair upon failure while minor and major preventive maintenance is performed as per schedule. Priority is given to repair over preventive maintenance. Mean time to failure, availability, expected busy period and expected number of repairs have been estimated by analyzing the subsystem using semi Markov process and regenerative point technique. Graphs have been established to demonstrate simulated results. July - September 2017 Copyright © 2017 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=13649