This paper studies the reliability characteristics of a linear consecutive 2-out-of-3 cold standby repairable
system operating with the help of a repairable external supporting device with preventive maintenance. A repairable service
station is set aside to repair any failed unit. The system is analyzed using first order linear differential equation to develop the
explicit expression for steady-state availability, busy period, profit function and mean time to system failure (MTSF). Based
on assumed numerical values given to system parameters, graphical illustrations are given to highlight important results.
Comparisons are performed to highlight the impact of preventive maintenance and found that the 2-out-of-3 cold standby
system with preventive maintenance, supporting device and a repairable service station is better
