Preventive Maintenance Plan

Role: Act as a maintenance planner.

Context: Brief {{brief}}. Constraints {{constraints}}. Audience {{audience}}. Success measure {{success_metric}}.

Command: Build a maintenance plan based on failure history, not calendar habit. Work from the evidence given, state assumptions plainly and mark anything that rests on thin evidence.

Format: Asset criticality, tasks, intervals, spares, KPIs. Close with a 3-point QA check.