Major refinery turnarounds run $50 to $250 million with units offline 30-60 days, and a single day of delay typically costs $1-5M in lost production. The industry data is consistent: more than half run over budget, sixty percent run late. The variable that separates successful turnarounds from disasters isn't execution skill—it's the discipline of pre-TA planning that started 18 months before the shutdown. This 30-item checklist covers what disciplined teams verify across six pre-shutdown phases. Book a free demo to walk through turnaround planning on your facility.
Why Turnarounds Live or Die in Planning
Turnaround failure modes are remarkably consistent across industries. The schedule slipped because long-lead parts didn't arrive when needed. The budget blew because scope grew during execution from items that should have been frozen six months earlier. The safety incident happened because the permit-to-work matrix wasn't aligned with the actual work being executed. The restart was delayed because Operations and Maintenance weren't aligned on the shutdown sequence. None of these are execution failures. They're planning failures that surfaced during execution—and execution is the wrong place to fix them, because by then the only options are expensive ones.
The disciplined turnaround organizations treat the 18 months before T+0 as the most consequential window in the entire project. The work is frontloaded into strategic scoping, detailed planning, procurement coordination, and staging discipline. By the time the shutdown moment arrives, the major risks have been retired in advance and the execution team is working a plan that was stress-tested over the previous year and a half. Maintenance and turnaround leaders ready to apply this discipline can Sign up free to begin pre-TA planning audit on the next scheduled shutdown.
The T-Minus Shutdown Planning Checklist
The checklist below is organized as a countdown to the shutdown moment (T+0), with each phase representing one specific window in the pre-TA timeline. The earlier phases set the strategic boundaries; the later phases compress as execution approaches. Work the phases in sequence—skipping or delaying earlier phases collapses later phases into compressed timeframes that produce predictable execution problems.
- Steering committee chartered & business case approved by leadership
- Initial scope of work defined by unit, area, and reliability priority
- Budget envelope established with contingency reserve documented
- High-level duration target set against historic benchmarks (Solomon, AP Networks)
- Long-lead procurement items identified (9-18 month lead times catalogued)
- Work list frozen with risk-ranked scope and explicit sponsor sign-off
- Detailed task estimates by trade and area developed with crew sizing
- Critical path schedule built in SAP PM and Primavera with float analysis
- Contractor scope packages drafted and tendered to qualified vendors
- Reliability-based scope challenge sessions completed (kill bad scope early)
- Long-lead parts on order with verified delivery dates & expediting
- Contractor contracts awarded with mobilization clauses & KPIs
- Specialty tooling and rigging plans confirmed with lift studies signed
- Permit-to-work matrix drafted by area with isolation boundaries
- Safety orientation programs designed for site & contractor onboarding
- Materials staging in designated lay-down yards with bill-of-material traceability
- Permits & JSA (Job Safety Analysis) packages compiled per work order
- Contractor crews credentialed & site-onboarded per safety standard
- Final scope freeze with formal change control discipline activated
- Communication plan & daily meeting cadence published to all stakeholders
- Crew assignments confirmed shift-by-shift with backup-tech designations
- Daily execution war room activated with KPI dashboards live
- Isolation lists verified by Operations, Maintenance, and Safety
- Backup parts inventory verified on-site with expediting hotline activated
- Shutdown sequence rehearsed and signed off by Operations leadership
- Daily progress vs critical path tracked with float consumption metrics
- Discovered work logged with change board review & sponsor approval
- Quality assurance hold points enforced before downstream activity
- Pre-Startup Safety Review (PSSR) completed with documented sign-off
- Phased restart sequence executed by Operations with hold-point verification
The two highest-stake phases are P5 (Final Mobilization) and P6 (Execution & Restart)—the windows where any earlier-phase failure becomes visible and most expensive to correct. A scope item that wasn't risk-ranked in P2 surfaces in P6 as discovered work with a million-dollar change order. A long-lead part that wasn't expedited in P3 surfaces in P5 as a critical path delay. The discipline of executing each phase fully and on time is what prevents the cascading failures that produce the schedule slippage and cost overrun the industry consistently reports. TAR planning leaders ready to operationalize this checklist on a current shutdown can Sign up free to track phase-by-phase completion on a live turnaround.
Three Planning Gaps That Cost Turnarounds Millions
Three planning failure modes account for the majority of TAR cost overruns and schedule slippages. Each is preventable through disciplined execution of the checklist phases—and expensive only because they're typically caught during execution rather than during planning.
The unifying pattern across all three gaps: each is the consequence of an earlier-phase item that wasn't completed fully or wasn't signed off rigorously. The cost of an item slipping is exponentially higher each phase it carries unaddressed. The checklist exists specifically to enforce phase-gate discipline that prevents this compounding. TAR managers ready to assess current planning completeness can Sign up free to run a phase-gate diagnostic on the current planning state.
From Planning to Execution: The Final 30 Days
The final 30 days before T+0 is the highest-tension window in the entire turnaround project. Every gap from earlier phases becomes either resolved or carried into execution as risk. The cadence below is what disciplined organizations follow in the final pre-shutdown weeks.
By T+0, every item on the 30-item checklist has either been completed and signed off, or has been formally accepted as a managed risk with documented mitigation. That documentation is what separates a turnaround that executes cleanly from one that produces the cost overruns and schedule slippages the industry chronically reports. TAR leaders ready to walk this final cadence on their own shutdown timeline can Book a free demo to map the final-30-day cadence to current TAR dates.
Expert Perspective: What Distinguishes Predictable Turnarounds
The turnarounds I've seen execute predictably share a property that often surprises new TAR managers: they treat phase-gate discipline as inviolable. Each phase has explicit completion criteria, an accountable owner, and a sign-off that means something. Phase 2 doesn't start before Phase 1 closes. Phase 4 doesn't relax the freeze established in Phase 2. Scope additions in Phase 5 require executive sponsor approval with documented business case—not "well, while we're in there" justification. The turnarounds that overrun on cost and schedule almost always trace to a phase that closed without genuine completion—items deferred to a later phase, scope freezes held loosely, sign-offs given without underlying evidence. The discipline isn't sexy. It's not innovative. It's just the patient enforcement of phase-gate criteria over an 18-month planning horizon, and it's what separates predictable turnarounds from career-ending ones.
