• there is no automatic guarantee that a new design will
actually solve the problem. The scrapyards of the world
are littered with modifications that "didn't quite work" silent testimony that second guessing the original designers often becomes an expensive exercise in futility.
However, this is not meant to imply that we should never
redesign existing assets. Occasions often arise where the
desired performance of an asset exceeds its inherent reliability, in which case no amount of maintenance can deliver
the desired performance. In such cases “better” maintenance
cannot solve the problem, so we need to look beyond maintenance for the solutions. Options include modifying the
asset, changing operating procedures, or simply lowering
our expectations and deciding to live with the problem