Preventive Maintenance vs Equipment Availability
Shift from fixed-schedule to condition-based maintenance using predictive diagnostics so interventions are triggered by actual degradation, not calendar time.
CyberTRIZ analysis · OilIndustry contradiction C14-R001 · one of 8,235 worked contradictions published by CyberTRIZ.AI
Regulations
Business Context
Preventive maintenance reduces equipment failures, extends asset life, and supports safe operation. However, every scheduled intervention requires production interruptions, maintenance resources, and operating expenses, creating constant tension between maintenance planning and production objectives.
The Contradiction
Increasing preventive maintenance improves equipment reliability.
However, more maintenance reduces equipment availability and production time.
Why the Contradiction Exists
Equipment gradually deteriorates during operation, but maintenance activities require planned downtime that directly affects production.
Operational Risks
Deferred maintenance increases failure probability, while excessive maintenance reduces productivity and increases cost.
Oil Industry TRIZ Analysis
Maintenance frequency should depend on asset condition, operational criticality, and failure probability rather than fixed schedules. Predictive diagnostics and continuous monitoring improve reliability while minimizing unnecessary shutdowns.
Applicable TRIZ Principles
Principle 23 – Feedback
Principle 15 – Dynamics
Principle 19 – Periodic Action
Decision Tree
If equipment condition remains acceptable, continue operation.
If degradation is detected, schedule maintenance.
Operational Playbook
Monitor equipment condition.
Evaluate degradation.
Prioritize interventions.
Execute maintenance.
Verify performance.
Update maintenance plans.
Verification Metrics
Equipment availability, MTBF, planned downtime, maintenance cost, and failure frequency.