Non-Destructive Testing (NDT) During Plant
Shutdowns: Methods, Planning and Best Practices
Non-destructive testing during shutdowns helps industrial plants identify hidden defects, evaluate equipment integrity, and determine which repairs must be completed before production resumes. The challenge is not simply to inspect as much equipment as possible. It is to identify the right components, select the appropriate testing methods, interpret the results correctly, and convert findings into an executable maintenance plan without compromising safety or extending the shutdown unnecessarily.
For maintenance leaders, reliability engineers, inspection managers, and turnaround planners, NDT is a critical part of shutdown decision-making. An inspection finding can change a repair scope, trigger replacement of a component, require additional engineering assessment, or reveal that an asset is suitable for continued operation within defined limits.
Yet inspection programs often encounter predictable problems: inspection scopes are finalized too late, access arrangements are incomplete, contractors are mobilized without clear priorities, reports arrive after repair crews have moved on, or defects are discovered without the materials and resources required to resolve them.
A more effective approach connects non-destructive testing during shutdowns with risk-based inspection, asset integrity management, work-order planning, resource readiness, and controlled restart decisions. This guide explains the major NDT methods, how to select them, how to plan inspection activities, and how to turn inspection evidence into practical maintenance decisions.
Why NDT matters during plant shutdowns
Industrial equipment deteriorates through corrosion, erosion, fatigue, thermal cycling, vibration, pressure loading, chemical exposure, and other operating conditions. Some damage is visible during routine maintenance; other defects remain hidden beneath insulation, inside pipe walls, within welds, or beneath a component’s surface.
NDT provides methods for evaluating material condition without destroying the component being examined. Depending on the technique, it can help identify surface-breaking cracks, internal discontinuities, wall thinning, weld imperfections, and other indications relevant to equipment integrity. However, no single NDT method detects every defect. The result is meaningful only when the technique is appropriate for the suspected damage mechanism, the material, the geometry, and the inspection objective.
The business objective is therefore not maximum inspection volume. It is the right inspection coverage, at the right time, followed by the right engineering decision.
A well-planned NDT program helps organizations:
Identify defects before they progress to equipment failure.
Establish the condition of safety-critical and production-critical assets.
Confirm the extent of corrosion, cracking, or other suspected deterioration.
Prioritize repair, replacement, and further investigation.
Reduce uncertainty in shutdown scope, materials, labor, and duration.
Improve the quality of asset-integrity records for future maintenance cycles.
Support technically justified decisions about equipment return to service.
NDT contributes to these outcomes, but it does not independently guarantee safe operation. Findings must be evaluated against applicable codes, engineering criteria, inspection plans, and site-specific acceptance requirements.
Common NDT methods used during plant shutdowns
Selecting a method begins with the question: What type of damage are we trying to detect, where is it located, and what evidence is required to make a decision? The answer determines whether surface examination, volumetric testing, specialized inspection, or a combination is appropriate.
1. Visual testing (VT)
Visual testing is often the first inspection method applied during shutdowns. A qualified inspector examines accessible surfaces for visible indications such as corrosion, deformation, leakage evidence, coating deterioration, damaged supports, weld surface irregularities, and other signs of deterioration.
Tools may include lighting, mirrors, magnification, borescopes, cameras, and remote visual inspection equipment. Visual examination can also guide more targeted testing by identifying locations where detailed examination is warranted.
Typical applications: General equipment condition assessment, pipework, structural components, accessible welds, vessel internals, and inspection follow-up.
Key limitation: Visual testing cannot reliably reveal defects that are hidden from view or located beneath the material surface. Surface condition, cleanliness, illumination, access, and inspector competence affect the quality of the examination.
2. Ultrasonic testing (UT)
Ultrasonic testing uses high-frequency sound waves to examine material condition. Depending on the technique and configuration, UT can measure remaining wall thickness, detect internal discontinuities, and support evaluation of welds and other components.
Conventional thickness measurement is particularly useful when corrosion or erosion may have reduced pipe or vessel wall thickness. More advanced techniques, including phased-array ultrasonic testing (PAUT) and time-of-flight diffraction (TOFD), may be selected for appropriate weld-inspection applications.
Typical applications: Piping systems, pressure vessels, tanks, welds, corrosion assessment, and thickness monitoring.
Key limitation: Results depend on material properties, surface condition, component geometry, calibration, probe selection, operator competence, and defect orientation. A measurement at one location does not automatically establish the condition of an entire component.
3. Radiographic testing (RT)
Radiographic testing uses X-rays or gamma radiation to produce an image that can reveal certain internal discontinuities. It is widely used for suitable welds and components when the required inspection coverage and acceptance criteria can be met.
Typical applications: Weld examination, selected piping joints, pressure equipment, and components requiring internal inspection evidence.
Key limitation: Access, component thickness, material, defect orientation, image quality, and the selected technique influence detectability. Radiation creates a significant safety consideration: controlled areas, exclusion zones, approved procedures, and coordination with nearby work are essential.
Radiography should not be selected solely because it is familiar. Its suitability must be assessed against the defect type, inspection objective, applicable standard, and site constraints.
4. Magnetic particle testing (MT)
Magnetic particle testing identifies surface and near-surface discontinuities in suitable ferromagnetic materials. The component is magnetized, and magnetic particles accumulate at locations where a discontinuity disturbs the magnetic field.
Typical applications: Ferromagnetic welds, shafts, selected mechanical components, and surface-crack examination.
Key limitation: The method is not suitable for every material. Magnetization direction, surface condition, access, and the orientation of a discontinuity affect the result.
5. Liquid penetrant testing (PT)
Liquid penetrant testing detects discontinuities that are open to the surface of a clean, nonporous material. A penetrant enters the discontinuity and is subsequently revealed through an approved removal and developing process.
Typical applications: Surface-crack examination of suitable welds, castings, machined parts, and non-ferromagnetic materials.
Key limitation: PT cannot identify defects that do not break the surface. Surface preparation and the prescribed process are essential; contamination, coatings, or inadequate cleaning can compromise the examination.
6. Eddy current testing (ET)
Eddy current testing uses electromagnetic induction to evaluate electrically conductive materials. It is useful for selected surface and near-surface examinations and is widely applied in suitable heat-exchanger tube inspection programs.
Typical applications: Heat-exchanger tubing, conductive components, and selected examinations for cracking, material changes, or localized deterioration.
Key limitation: Conductivity, material condition, geometry, probe design, and signal interpretation influence the result. The technique and reference standards must be suitable for the component and damage mechanism.
7. Advanced and specialized NDT methods
Some shutdowns require additional techniques because conventional inspection cannot adequately address the suspected damage or operating conditions.
Examples include:
Phased-array ultrasonic testing (PAUT): Electronically steered ultrasonic beams can support detailed examination of suitable welds and components.
Time-of-flight diffraction (TOFD): An ultrasonic technique used for sizing certain weld flaws under appropriate conditions.
Acoustic emission testing: Can help identify active damage-related activity under suitable monitoring conditions.
Alternating current field measurement (ACFM): Used for detecting and assessing certain surface-breaking cracks.
Infrared thermography: Helps identify abnormal thermal patterns in appropriate applications; it does not replace direct examination where internal material integrity must be established.
Specialized corrosion mapping and non-intrusive inspection: May support condition assessment when conventional access or internal examination is difficult.
The availability of advanced equipment does not itself justify its use. Method selection must be based on the damage mechanism, demonstrated capability, access, qualified personnel, and the decision that the inspection needs to support.
How to select the right NDT method
The most common planning mistake is to begin with a preferred testing technology instead of defining the inspection problem. An effective method-selection process works in the opposite direction.
Step 1: Define the suspected damage mechanism
Review operating history, previous inspection reports, process conditions, material specifications, known corrosion circuits, failure records, and engineering assessments. Identify whether the primary concern is general corrosion, localized pitting, cracking, erosion, weld defects, fatigue, or another form of deterioration.
Step 2: Identify the location and extent of the examination
Determine whether the concern is at the surface, beneath the surface, within a weld, across a tube bundle, or distributed over a larger area. Establish whether the inspection needs to find an indication, measure wall thickness, characterize a defect, or provide evidence for an engineering assessment.
Step 3: Confirm method capability and limitations
Assess whether the selected technique can detect the relevant discontinuity with the sensitivity and coverage required. Consider material type, geometry, thickness, access, surface preparation, defect orientation, and the required acceptance criteria.
Step 4: Define the required evidence
Specify the procedure, examination extent, reporting format, calibration or reference requirements, personnel qualifications, and criteria for escalation. Where defect sizing or engineering assessment is required, ensure the inspection method can supply appropriate data.
Step 5: Check execution constraints
Confirm isolation, access, cleaning, scaffolding, lighting, radiation controls where applicable, inspection sequence, and interfaces with mechanical work. An appropriate method that cannot be safely executed within the planned sequence needs a revised execution plan.
Inspection requirement | Methods to consider | Important qualification |
|---|---|---|
General visible deterioration | VT | Requires suitable visibility and access |
Remaining wall thickness | UT thickness measurement | Locations and coverage must be representative |
Internal weld discontinuities | UT, PAUT, TOFD or RT | Select according to weld, material, geometry, code and defect |
Surface-breaking cracks in suitable ferromagnetic materials | MT | Requires suitable magnetic properties and technique |
Surface-breaking cracks in suitable nonporous materials | PT | Defect must open to a properly prepared surface |
Suitable heat-exchanger tube examination | ET or other qualified tube-inspection method | Technique depends on tube material and expected damage |
Specialized or inaccessible inspection | Advanced or non-intrusive methods | Suitability and demonstrated performance must be established |
The table is a planning aid, not a universal method specification. Final selection should be approved by the responsible inspection or engineering authority in accordance with applicable requirements.
NDT planning before a plant shutdown
Inspection readiness should be established well before the shutdown date. The quality of preparation determines whether an inspection team can begin work immediately, obtain reliable results, and pass actionable findings to maintenance without creating avoidable delays.
1. Build an asset-based inspection register
Create a consolidated register of the equipment and components requiring inspection. Each entry should identify the asset tag, location, system, component or weld reference, suspected damage mechanism, inspection method, required coverage, responsible party, and the reason the inspection is necessary.
The register should be traceable to relevant asset records and previous inspection findings. Avoid vague instructions such as “inspect piping” or “check vessel.” Define the specific line, circuit, nozzle, weld, zone, tube bundle, or measurement locations wherever the engineering scope allows.
2. Prioritize inspections using risk and criticality
Not all equipment carries the same consequence of failure. Prioritization should consider personnel safety, environmental impact, production loss, equipment redundancy, regulatory obligations, defect history, and the likelihood of deterioration.
A practical framework can group inspection work into:
Critical: Safety-critical, legally required, or high-consequence assets that need defined inspection and release controls.
High priority: Equipment with credible deterioration concerns or a significant operational impact if defects are found.
Medium priority: Assets with known inspection needs that can be scheduled according to approved risk and maintenance criteria.
Routine: Lower-risk items managed through established inspection intervals and documented condition requirements.
These labels are an operational aid, not a substitute for a formal risk-based inspection assessment. Statutory inspection requirements and safety obligations must not be bypassed because of a low commercial priority. Risk-based inspection is intended to direct appropriate inspection effort, not to justify neglecting mandatory examinations.
3. Review inspection history and operating data
Prior inspection findings are especially valuable when they can be compared consistently over time. Review wall-thickness measurements, defect maps, previous radiographs or ultrasonic records, repair history, corrosion monitoring data, operating excursions, vibration reports, and known process changes.
The goal is to understand what has changed since the last examination. A recurring defect may require more focused inspection or a revised damage assessment. A history of stable measurements may inform the inspection strategy, but it should not override new operating conditions, engineering concerns, or required inspection intervals.
4. Prepare access, isolation, and work permits
NDT activities can depend on scaffolding, insulation removal, cleaning, confined-space controls, gas testing, lighting, lifting arrangements, radiation exclusion zones, and safe access to elevated or restricted locations.
These dependencies should be planned as explicit work steps. Assign owners and required completion times to prerequisites so that specialist inspection teams do not arrive to find equipment inaccessible or not released for work.
5. Confirm personnel, equipment, and procedures
Before mobilization, verify that the NDT contractor or internal inspection team has the required personnel qualifications, approved procedures, calibrated equipment, consumables, reference standards, and reporting arrangements.
Inspection competence and procedure requirements depend on the method, industry, component, and applicable code or standard. The planning team should also define how results will be reviewed, who can accept or reject indications, and who authorizes additional testing or repair.
6. Integrate NDT into the shutdown schedule
Inspection should not be treated as a separate activity that happens after maintenance has finished its work. It is often a predecessor to decisions about repair scope, welding, machining, replacement, pressure testing, and final release.
Map each inspection to its prerequisites and successor tasks. Identify which results are required before repair crews can proceed and which findings may affect the critical path. Build contingency arrangements for credible inspection discoveries rather than assuming that all results will be acceptable.
Best practices for executing NDT during shutdowns
A technically correct inspection can still create poor operational outcomes if execution is disconnected from the maintenance plan. The strongest shutdown teams manage inspection as a controlled workflow, from equipment preparation through result interpretation and repair verification.
Establish inspection hold points
Define the points at which work must pause until an inspection result or engineering decision is available. For example, a weld may require examination and acceptance before a subsequent activity can conceal the inspected area. A vessel finding may require engineering review before repair scope can be approved.
Hold points should be specified in the work pack, communicated during coordination meetings, and linked to the responsible decision-maker. They should be meaningful and risk-based, not so numerous that they create unnecessary administrative delays.
Standardize defect reporting
Every report should allow the maintenance and engineering teams to identify the exact location and understand the significance of the finding. Depending on the method and inspection scope, reports may need to include:
Asset tag, component reference, line number, weld number, or inspection location.
Examination date, method, procedure, and applicable acceptance criteria.
Inspection coverage, limitations, and any inaccessible areas.
Recorded indications, measurements, images, and relevant reference data.
Defect dimensions or characterization where the method supports them.
Comparison with previous inspection results when meaningful.
Recommended next action and the need for engineering assessment.
Inspector identification, review status, and supporting records.
A report that simply states “defect found” is not enough for effective shutdown execution. The finding must be traceable to the physical location and linked to a clear decision.
Separate indications from engineering decisions
An NDT indication is not automatically a rejectable defect. An indication must be interpreted according to the method, procedure, acceptance criteria, and relevant engineering requirements. Where a relevant defect is confirmed, the responsible engineer or authorized inspector determines the required action.
Depending on the findings, the next step may be additional examination, defect characterization, engineering fitness-for-service assessment, repair, replacement, monitoring, or another formally approved disposition. Acceptance criteria and repair decisions must not be improvised to protect the shutdown schedule.
Control unexpected findings
Unexpected defects are a normal possibility in industrial shutdowns. What matters is whether the organization has a disciplined way to respond.
Use a defined escalation workflow:
Record and locate the finding.
Notify the responsible inspection and maintenance authorities.
Determine whether additional examination or engineering assessment is required.
Evaluate safety, integrity, scope, cost, material, and schedule implications.
Approve the technical disposition and revise the work pack.
Update the schedule, resource plan, and equipment history.
Verify completed work and required examinations before release.
For high-consequence findings, follow the site’s formal escalation and authorization procedures immediately. Production restart pressure must not replace engineering judgment.
Verify repairs and preserve inspection records
When a repair requires post-repair examination, define the method, extent, acceptance criteria, and release requirements before the repair begins. Confirm that the required examination is completed and reviewed before the relevant hold point is released.
Store final reports, measurement data, images, defect dispositions, repair details, and approval records against the correct asset or component. Consistent records support future corrosion-rate comparisons, inspection interval reviews, and more reliable planning for the next shutdown.
How to reduce NDT-related shutdown delays
The most useful improvement is to remove uncertainty from the work before the shutdown begins. Delays frequently arise from dependencies between inspection and other activities rather than from the examination itself.
Common delay | Underlying cause | Preventive action |
|---|---|---|
Inspection crew waits for access | Scaffolding or insulation removal is incomplete | Assign prerequisite tasks with accountable owners |
Testing cannot start | Equipment is not isolated, cleaned, or released | Confirm readiness through a pre-job checklist |
Reports arrive too late | Reporting and review arrangements are unclear | Set turnaround times for reporting and technical review |
Repairs cannot proceed | Materials or repair specifications are missing | Prepare contingency materials and work-pack options where justified |
Work must be repeated | Method, coverage, or acceptance criteria were unclear | Approve inspection procedures and scope before mobilization |
Conflicting activities stop progress | Inspection overlaps with incompatible work | Coordinate work fronts, permits, and exclusion zones |
Restart is delayed | Required examinations or approvals remain open | Track inspection hold points and release criteria explicitly |
Planning should also distinguish between inspection work that can be completed while the plant is operating and work that genuinely requires a shutdown. Suitable on-stream or non-intrusive inspection may help confirm suspected damage and refine the scope before equipment is opened, provided the selected method is appropriate and its limitations are understood.
This approach can reduce uncertainty around access, repair materials, specialist mobilization, and the expected duration of intrusive work. It does not eliminate the need for shutdown examinations where required by the inspection strategy or applicable regulations.
NDT during shutdowns: safety and quality controls
Inspection activities must be planned within the plant’s permit-to-work system and applicable safety requirements. Safety controls depend on the asset, process, location, and NDT method.
Key considerations include:
Isolation and energy control: Verify that equipment is in the required safe state before work begins.
Confined spaces: Apply approved entry, atmospheric testing, rescue, and supervision arrangements where relevant.
Radiography: Establish controlled areas and exclusion zones, coordinate nearby activities, and follow approved radiation protection procedures.
Surface preparation and chemicals: Manage penetrants, cleaners, couplants, and other consumables according to their safety data and site procedures.
Working at height and access: Verify scaffolds, platforms, lifting arrangements, and access equipment before mobilization.
Quality assurance: Use qualified personnel, approved procedures, suitable equipment, and the required documentation.
Change control: Reassess the work when the actual condition differs from the planned scope or when new findings change the risk.
NDT is part of a wider safety and integrity management system. It cannot compensate for inadequate isolation, unsuitable inspection procedures, unqualified interpretation, or incomplete engineering review. Guidance from the UK Health and Safety Executive emphasizes defining the scope, inspection requirements, and risk basis, and evaluating whether the selected method is capable of detecting the defects of concern.
NDT performance metrics every shutdown team should track
Inspection performance should be measured by readiness, quality, decision speed, and integrity outcomes—not merely by the number of tests completed.
Consider the following indicators:
KPI | What it measures | Why it matters |
|---|---|---|
Inspection scope readiness | Percentage of planned inspections with approved scope and procedures | Identifies preparation gaps |
Inspection prerequisite readiness | Percentage of inspection jobs with access, isolation, and cleaning ready | Reduces waiting time |
On-time inspection completion | Percentage completed by the planned milestone | Highlights schedule performance |
Report turnaround time | Time from examination completion to an actionable report | Measures information flow |
Findings awaiting disposition | Open findings without an approved decision | Identifies potential repair or restart constraints |
Rework or repeat examination rate | Examinations repeated because of avoidable process or quality issues | Helps identify planning and execution weaknesses |
Repair verification completion | Required post-repair examinations completed and accepted | Supports controlled release |
Inspection record completeness | Percentage of completed jobs with required records linked to the asset | Improves future planning and traceability |
Define each KPI consistently, including the numerator, denominator, reporting window, and accountable owner. A high test-completion percentage is not proof of equipment integrity if critical findings remain unresolved. Likewise, a low defect count does not automatically indicate good asset condition; it may reflect inspection coverage, method limitations, or the type of damage present.
A useful shutdown dashboard therefore distinguishes inspection progress, open technical decisions, repair readiness, and release status.
How MaintWiz CMMS supports asset reliability and NDT planning
A computerized maintenance management system (CMMS) can help connect inspection findings to the maintenance work needed to resolve them. Its value is not in replacing qualified NDT inspectors or engineering assessment; it is in maintaining traceability from asset history and inspection scope to approved work, resource coordination, and closure.
A connected workflow can support several activities:
Asset and inspection history: Maintain structured asset records, previous work orders, inspection findings, and related maintenance history so planners can review relevant evidence before defining the next shutdown scope.
Corrective work management: Convert approved findings into traceable work orders, with priorities, responsibilities, required resources, planned dates, and completion records.
Planning and scheduling: Coordinate inspection prerequisites, repairs, parts, labor, and dependencies. Where the system supports these workflows, teams can track overdue actions and identify work that may affect the shutdown schedule.
Predictive maintenance and analytics: Combine appropriate condition-monitoring data, inspection results, failure history, and maintenance trends to help identify deterioration patterns and improve future planning. Predictive insights remain dependent on data quality and suitable technical interpretation.
Auditability and closeout: Link inspection outcomes, approved dispositions, repair records, and completion evidence to the relevant assets and jobs, subject to the system’s configuration and data practices.
For MaintWiz, the relevant use case is connecting asset information, maintenance planning, work execution, and analytics in a more coordinated process. The actual benefits depend on how asset registers, inspection data, work-order workflows, and reporting are configured and maintained.
A practical 90-day CMMS-supported NDT improvement sprint
A 90-day sprint can establish the basic discipline required to improve inspection readiness and closeout without attempting a complete transformation at once.
Days 1–30: Establish visibility
Identify critical assets and consolidate the upcoming shutdown inspection register.
Review available inspection history, open findings, and outstanding corrective work.
Standardize essential fields for asset identification, defect location, priority, and report status.
Identify gaps in ownership, access requirements, inspection procedures, and records.
Days 31–60: Improve planning readiness
Connect approved inspection findings to work orders and maintenance plans.
Assign accountable owners and target dates to inspection prerequisites.
Define escalation rules for critical findings and overdue technical decisions.
Create a simple view of inspection readiness, open findings, and work requiring engineering disposition.
Days 61–90: Execute, review, and standardize
Apply the workflow to a selected shutdown or equipment group.
Monitor inspection completion, report turnaround, unresolved findings, and repair verification.
Review where access, materials, approvals, or work sequencing caused delays.
Capture lessons learned and refine the process for the next shutdown cycle.
The sprint should end with measurable improvements in data completeness, planning readiness, work traceability, and decision visibility—not just a new dashboard. Establish baseline measurements during the first month so the team can assess whether the changes have produced practical improvements.
Conclusion: Make NDT a decision process, not just an inspection activity
Non-destructive testing during shutdowns is most valuable when it answers a clear engineering question and produces evidence that can be acted upon. Choosing a suitable method, preparing equipment access, prioritizing inspection by risk, controlling work interfaces, and reviewing findings promptly are all parts of the same operational process.
The strongest shutdown programs plan inspection before the plant stops, define how findings will be evaluated, prepare realistic repair options, and maintain traceable records through final verification. They measure success by the quality of decisions and the readiness of equipment for controlled return to service—not by inspection volume alone.
When NDT is integrated with asset integrity management, maintenance planning, and a well-maintained CMMS, inspection results can inform not only the current shutdown but also the reliability strategy for the next operating cycle.
Frequently asked questions about NDT during plant shutdowns
What is non-destructive testing during shutdowns?
Non-destructive testing during shutdowns is the examination of industrial equipment and materials to identify defects or assess condition without destroying the component being inspected. It supports maintenance planning, asset integrity decisions, and repair verification before equipment returns to service.
Which NDT methods are commonly used during plant shutdowns?
Common methods include visual testing (VT), ultrasonic testing (UT), radiographic testing (RT), magnetic particle testing (MT), liquid penetrant testing (PT), and eddy current testing (ET). Advanced methods such as phased-array ultrasonic testing may be used where the inspection requirements justify them.
Why is NDT important during a plant turnaround?
NDT helps identify defects, assess equipment condition, and establish whether repair or further engineering assessment is needed. When planned early, it also helps teams prepare materials, specialist resources, access arrangements, and realistic shutdown schedules.
How do you choose the right NDT method for industrial equipment?
Start by identifying the suspected damage mechanism, material, component geometry, defect location, required detection capability, and applicable acceptance criteria. Then assess access, safety requirements, procedure suitability, and the evidence needed for the engineering decision.
Can NDT be performed without shutting down a plant?
Some inspections can be performed while equipment remains in operation, using suitable on-stream or non-intrusive methods. However, the feasibility depends on the asset, process conditions, suspected damage, technique capability, and applicable requirements. On-stream inspection does not replace mandatory or technically necessary shutdown examinations.
What is the difference between UT and RT in NDT?
Ultrasonic testing uses sound waves to examine material condition and can support thickness measurement and the detection of certain internal discontinuities. Radiographic testing uses X-rays or gamma radiation to produce images that reveal certain internal features. The appropriate choice depends on the component, defect characteristics, geometry, access, required sensitivity, and applicable acceptance criteria.
What safety precautions are required during NDT?
Precautions may include approved equipment isolation, permit-to-work controls, confined-space procedures, safe access, suitable personal protective equipment, and controlled radiation zones when radiography is used. Requirements must be determined by the method and site-specific hazards.
How should NDT findings be managed during shutdown maintenance?
Record each finding against the correct asset and location, review it against the applicable criteria, and route it to the responsible inspection or engineering authority. Create corrective work orders where required, assign resources, track the approved disposition, and complete any required post-repair examination before releasing the relevant hold point.
How can a CMMS improve NDT and shutdown planning?
A CMMS can link asset history, inspection findings, corrective work orders, priorities, schedules, and completion records. This improves traceability and helps planners identify unresolved findings and maintenance dependencies, provided the data and workflows are configured and maintained properly.
Which KPIs should be tracked for shutdown NDT?
Useful KPIs include inspection readiness, on-time completion, report turnaround time, findings awaiting disposition, repeat examination rate, repair verification completion, and inspection record completeness. These should be evaluated alongside safety, integrity, and engineering requirements.
Jai Balachandran is an industry expert with a proven track record in driving digital transformation and Industry 4.0 technologies. With a rich background in asset management, plant maintenance, connected systems, TPM and reliability initiatives, he brings unparalleled insight and delivery excellence to Plant Operations.
