A Maintenance Plan for Airborne Radio Equipment

This paper briefly outlines the Australian system of maintenance for airborne radio equipment, and gives in more detail the results of a recent investigation into the reasons for, and incidence of, unscheduled removals of units. The probability of unscheduled removal, derived from the investigation data, was used as a criterion for the assessment of the optimum period between scheduled overhauls. It was found that, in many instances, the probability of failure is greatest immediately after overhaul and decreases with time. Comparisons of the performance of various types of units are given.