Plant Turnaround & Maintenance

Turnarounds and shutdowns are among the most schedule-sensitive and resource-intensive events in the life of an operating plant. The available window is limited, work fronts are highly interdependent, site conditions can change quickly, and every activity must be managed around safety, quality and the requirement to restore the asset to service.

APD provides planning, coordination and execution support for plant turnarounds, shutdowns and maintenance programmes. Our approach begins well before the shutdown date with scope definition, work-pack preparation, material readiness, resource loading, access planning and schedule development. During execution, we focus on safe mobilisation, daily progress control, rapid issue resolution, quality verification and disciplined handback of completed systems.

Integrated Turnaround and Maintenance Support for Operating Facilities

Turnaround Planning & Preparation

  • Scope review, validation and work-list development
  • Site survey and job scoping support
  • Work breakdown structure and activity coding
  • Job plans, method statements and work-pack preparation
  • Resource loading and manpower planning
  • Tool, equipment, lifting and access planning
  • Material, spare-part and consumable readiness tracking
  • Temporary facilities and mobilisation planning
  • Shutdown schedule development, logic review and critical-path analysis
  • Permit, isolation and interface planning with the operating team

Shutdown / Turnaround  Execution Support

  • Mobilisation and site coordination
  • Daily work-front planning and progress tracking
  • Mechanical maintenance and equipment intervention support
  • Piping replacement, modification and tie-in works
  • Valve removal/reinstatement and associated piping activities
  • Static-equipment access and maintenance support
  • Electrical and instrumentation maintenance support
  • Civil/structural repair and minor modification works
  • Scaffolding, insulation, painting and specialist-service coordination where included in the project scope
  • QA/QC inspection and test coordination
  • Punch-list management and system handback

HSE, Quality & Work Control

  • Task risk assessment and method-statement coordination
  • Toolbox talks and workforce communication
  • Permit-to-work interface support
  • Isolation/LOTO coordination with the client’s authorised system
  • Inspection and test plan coordination
  • Welding/NDT and quality-record coordination where applicable
  • Daily HSE and quality observations
  • Work completion verification and turnover documentation

Maintenance & Brownfield Support

  • Planned preventive maintenance support
  • Corrective maintenance and repair campaigns
  • Brownfield modifications and debottlenecking work packages
  • Equipment replacement and upgrade coordination
  • Small capital works and plant improvement projects
  • Mechanical, piping, E&I and civil maintenance packages
  • Maintenance backlog reduction campaigns
  • Long-term maintenance support arrangements tailored to plant requirements

Schedule Recovery &  Performance Control

  • Shift and daily progress reporting
  • Critical and near-critical activity monitoring
  • Constraint and hold-point tracking
  • Manpower and productivity review
  • Recovery-plan development for delayed work fronts
  • Look-ahead planning by area, system and discipline
  • Management-level turnaround dashboards

Brownfield & Greenfield Projects

End-to-end project support for both new developments and upgrades to existing facilities, with a focus on safe execution, integration and operational continuity.

  • New Facility Development & Construction
  • Existing Plant Modification & Expansion
  • Tie-ins, Upgrades & System Integration
  • Project Planning, Execution & Handover

Our Turnaround Objective

The objective is straightforward: complete the approved scope safely, to the required quality, within the agreed outage window, and return the plant to operations in a controlled and documented condition. APD structures its turnaround support around preparation, readiness, field discipline and rapid coordination — the areas that most directly influence shutdown performance.