The introduction to the Fault Tree Analysis has been presented in this article. Selected publications on the
Fault Tree Analysis have been listed. The usefulness of the method in marine engineering application has
been indicated. Reliability testing facility has been presented, that is typical two-stroke, slow-speed ship
crosshead Diesel engine intended to power the ship. The way of creating system model with the Fault Tree
Analysis application has been presented. Reliability structure of tested engine has been modelled using
Reliability Block Diagrams, as well as the Fault Tree Analysis. Main tree describing the object reliability
structure analysis and the sub-tree structure modelling crank system, subsystem of the cam shaft, cylinder
exemplary system and turbocharger have been built. Qualitative analysis of the tree has been conducted – the
minimal cut sets of the system has been determined. The directions for further research have been indicated.