What is a cost-effective maintenance task for a failure mode which is considered by the...

The correct answer is B . For a failure mode that the business considers low risk , the most cost-effective maintenance task is often fix-on-failure (also called run to failure ). The IAM-aligned GFMAM Maintenance Framework states that for very low criticality assets , a “Run to Failure” maintenance strategy may be perfectly reasonable, meaning the asset is allowed to operate without maintenance until a fault becomes apparent or it fails to serve the organization functionally.

This aligns with IAM maintenance principles more broadly: maintenance regimes should be selected on a risk-based basis, and the level of maintenance should be balanced against cost to achieve maximum life-cycle value . For low-risk failure modes, a proactive scheduled replacement or overhaul is usually not economically justified unless there is some separate regulatory, safety, or operational reason.

Why the other options are incorrect:

A and E impose scheduled interventions that are usually unnecessary for low-risk failure modes.

C redesign is too strong and too costly for a low-risk issue.

D combines even more cost-intensive proactive methods without justification. So the IAM-aligned answer is B .