Preventive Maintenance Program Gap Analysis Checklist
This checklist systematically benchmarks existing preventive maintenance (PM) programs against ISO 14224 and ANSI/ISA-95 standards. It identifies specific gaps in task frequency, asset criticality alignment, spare part integration, and data collection to drive reliability improvements.
A Preventive Maintenance (PM) Program Gap Analysis identifies discrepancies between an organization's current maintenance execution and established best practices (ISO 14224, ANSI/ISA-95). It evaluates PM frequencies, task content, asset criticality alignment, spare parts integration, and data collection mechanisms. The output is a prioritized list of corrective actions to move from reactive firefighting to proactive, predictive reliability.
This checklist applies to all physical assets classified as 'Critical' or 'Semi-Critical' within the maintenance database (CMMS). Criticality is determined by Risk Priority Number (RPN) = Severity x Occurrence x Detection. Assets with RPN > 125 are considered Critical.
Exclusions: Assets designated as 'Non-Critical' or run-to-fail (RTF) are outside the scope. Building services (HVAC, lighting, plumbing) are typically excluded unless they directly impact product quality or safety.
Validation: All findings must be verified against OEM technical manuals and site-specific operational context.
- PM Compliance: Total PMs Completed On-Time / Total PMs Scheduled x 100. Tracks adherence to the master schedule and is a lagging indicator of execution discipline.
- Schedule Adherence: Hours Worked on Scheduled PMs / Total Worked Hours. Measures how much of the workforce's time is spent on planned vs. unplanned work. Target > 80%.
- Backlog Hours: Sum of all open work order estimated hours. Indicates workforce load and efficiency potential. A healthy backlog is 4-6 weeks of planned capacity.
- Mean Time Between Failures: Total Operating Time / Number of Failures. A leading indicator of reliability improvements driven by optimized PM task lists.
- Mean Time To Repair: Total Repair Time / Number of Failures. Measures maintainability and spare parts availability. Lower MTTR indicates effective logistics integration.
- Reliability Engineer (Gap Analysis Lead): Defines the checklist criteria, conducts asset criticality ranking, leads the FMEA process, and finalizes the gap remediation roadmap.
- Maintenance Planner: Audits existing PM task lists for accuracy, updates CMMS data fields, and consolidates spare part requirements for each critical PM task.
- Maintenance Manager: Allocates resources for PM execution, approves PM frequency changes, and chairs the quarterly gap closure review board.
- CMMS Administrator: Extracts raw compliance data, updates asset hierarchies, and maintains the integrity of PM master data (frequencies, task lists, criticality flags).