PATH 2 OF 3 · RELIABILITY & MAINTENANCE
Once the condition is understood, decide what work will preserve or restore performance.
This is the second Asset Performance knowledge path. It focuses on whether intervention is actually needed, what work makes sense now, whether the organization is ready to execute it, and what the result teaches about the asset.
THE SECOND QUESTION
What should be done to preserve or restore required performance?
The goal is not more maintenance. It is the right action, at the right time, with enough preparation and feedback to improve the asset's ability to perform.
What condition are we actually managing?
Carry forward the evidence and context from Path 1. Clarify the observed condition, likely failure or degradation mechanism, uncertainty, criticality, and how the issue affects required performance.
What intervention is justified now?
Compare legitimate choices such as continued monitoring, inspection, operating adjustment, planned maintenance, repair, deferral, or replacement. Use consequence, timing, decision window, and reversibility to determine what action is proportionate.
Is the work ready to succeed?
Confirm people, qualifications, parts, tools, procedures, access, permits, operating windows, contractor support, responsibilities, and the reasoning that needs to travel with the work.
What did the work reveal?
Compare expected versus actual condition, capture field findings, verify whether performance improved, update assumptions, and carry useful learning into the next maintenance or reliability decision.
PRACTICAL RESOURCE
Reliability & Maintenance Decision Workbook
The workbook carries these four questions into a working decision record for technical, operational, planning, and field teams. It preserves the evidence, options, execution readiness, review triggers, field findings, and expected-versus-actual results behind the decision so the reasoning does not disappear with the people who made it. Years later, another qualified person should still be able to understand what was known, why the action was chosen, what uncertainty remained, and what happened afterward.
Decision Continuity: preserve enough of the reasoning behind an operational decision that the next person can understand it, challenge it, and learn from what happened.
REFERENCE BASIS
Established reliability and asset-management practice, organized for practical use.
This page and workbook draw on established asset-management, reliability, maintenance, condition-monitoring, and production-assurance practices. They are intended to complement an organization's engineering, operating, safety, work-control, CMMS, EAM, and APM systems.
Selected basis: ISO 55001:2024; ISO 17359:2018; ISO 14224:2016; ISO 20815:2026; SAE JA1011:2024; and the GFMAM Maintenance Framework.
THE TEST
Did the intervention improve the asset's ability to perform?
If the result differs from expectation, the difference is new evidence. Carry it forward before comparing repair, replacement, continued operation, or other lifecycle choices.