MNT.2:2 - Problem

Task frequency and technical sophistication are poor substitutes for policy reasoning. An age-based replacement may remove a wear-related failure, do little for a largely age-independent fault or introduce a new installation fault. A sensor may observe degradation without leaving enough time to obtain a part and act.

A policy therefore needs a credible connection between failure behaviour, what the task can change, the consequence of waiting and the practical burden of intervention.