The blind spot
Maintenance takes most of the lifecycle cost and least of the attention
There is a structural reason for it. Capital procurement is visible, event driven, politically rewarding and vendor supported. Maintenance is continuous, unglamorous, distributed across thousands of small decisions, and no supplier's interest is served by making it cheaper. Twenty-one fractures, grouped by what is actually broken, each labelled observed where it is documented practice and asserted where it is judgement. Select any one for why it persists and what fixes it. Nothing here is a maintenance instruction: intervals, procedures and safety cases belong to the operator and its regulator.