PAT01
SAFETY INSPECTION
Partial Acceptance Test / Safety Inspection
The initial independent safety inspection in the NLETA engineering decision pathway.
Reference: TCSP-01 Rev.1 • T-01
Explore PATEngineering · Safety · Governance
Engineering Services.Independent Assessment. Responsible Engineering.
NLETA provides third-party inspection, testing, technical auditing, standards compliance assessment, risk analysis and lifecycle engineering services for lifts and escalators within the applicable technical and regulatory scope.
Our structured process supports documented findings, appropriate follow-up and informed engineering decisions.
Our engineering service portfolio
Four Services. One Controlled Engineering Framework.
Explore each service to understand its purpose, applicable prerequisites and potential engineering decision pathway.
SAT02
QUALITY & PERFORMANCE
Satisfactory Acceptance Test / Quality Inspection
Independent quality and performance inspection when further engineering evaluation is justified.
Reference: TCSP-01 Rev.1 • T-02
Explore SATSCI03
STANDARDS COMPLIANCE
Standards Compliance Inspection
Assessment of applicable standards and engineering compliance within the agreed scope.
Reference: TCSP-01 Rev.1 • T-03
Explore SCIDLA04
LIFECYCLE ENGINEERING
Design Life Assessment
Lifecycle engineering assessment covering ageing, obsolescence, remaining useful life and modernisation considerations.
Reference: TCSP-01 Rev.1 • T-04
Explore DLAEngineering decision pathway
The Next Step Depends on Engineering Findings.
PAT is the initial service. Further assessment is considered when the approved engineering decision framework supports it. The pathway does not make every subsequent service automatically mandatory.
Partial Acceptance Test / Safety Inspection
Initial safety inspection. Findings are reviewed under the approved PAT trigger matrix.
View serviceSatisfactory Acceptance Test / Quality Inspection
SAT may be recommended where a defined engineering trigger supports further quality or performance assessment.
View serviceStandards Compliance Inspection
SCI may be recommended where standards-related findings justify compliance verification.
View serviceDesign Life Assessment
DLA may be recommended where ageing, obsolescence or lifecycle concerns justify further assessment.
View serviceImportant engineering control
PAT, SAT, SCI and DLA decisions must follow the approved TCSP-01 Rev.1 and T-01 through T-04 documents. This visual is an introductory explanation; it does not replace the approved technical trigger matrix or authorise a service or certificate.
Continuing digital governance
DGS — Digital Governance System
DGS supports the recording and review of asset history, maintenance information, callback reports, operational observations, compliance dates and relevant trends.
It operates separately from the PAT → SAT → SCI → DLA engineering decision chain.
Discover DGSHow DGS supports governance
- ✓Records relevant asset and engineering history.
- ✓Maintains maintenance and callback traceability.
- ✓Links related operational observations.
- ✓Supports governance reporting and trend visibility.
- ✓Helps identify when further engineering review may be appropriate.
DGS does not replace maintenance, statutory inspections or engineering judgement. OEM/AMC retains its independent responsibility for maintenance diagnosis, priority and corrective action.
Additional engineering services
Engineering and Advisory Support
Subject to the applicable technical scope and engagement requirements, NLETA may provide additional services.
Technical Auditing
Structured review of relevant engineering processes, records and practices within the agreed scope.
Risk Analysis
Assessment and documentation of relevant risks using the applicable technical framework.
Engineering Consultancy
Engineering observations and advisory inputs within the defined scope of engagement.
Lifecycle and Modernization Guidance
Engineering inputs relating to ageing, obsolescence, remaining useful life and modernization considerations, where applicable.
How to begin a service engagement
From Service Selection to Technical Review
This process must connect to the existing CRM and Customer Service Dashboard rather than creating a separate workflow.
Service Selection Proposal
The customer reviews available services and submits the relevant requirement.
Final Service Offer (FSO)
Scope and commercial terms are reviewed through the approved process.
PSGA and Service Activation Form (SAF)
The applicable agreement, onboarding and service activation requirements are completed.
Work Programme and Site Coordination
The customer and relevant parties coordinate the agreed inspection or testing schedule.
Engineering Assessment and Findings
The authorised engineering team performs the applicable work and records its findings.
Rectification, Verification and Reporting
Where required, findings are addressed by the responsible agency and closure is verified under the applicable procedure.
Technical Review and Certificate Process
Reports and certificates proceed through the applicable technical review, approval and document-control process.
Commercial activity and engineering authority remain separate. Commercial teams must not control technical findings, trigger decisions, engineering reports or certificate approvals.
Customer FAQs
Common Questions About Engineering Services
Is SAT required for every lift?
No. SAT is considered according to the applicable PAT findings and engineering trigger criteria. The final decision follows the approved technical process.
Can I request SCI or DLA directly?
You may submit your requirement, but the NLETA framework specifies prerequisites for these services. The engineering team must review the applicable records and confirm the permitted next step.
Does DGS replace maintenance or inspection?
No. DGS supports continuing digital governance. It does not replace maintenance, statutory inspections or the required engineering assessment.
Who performs rectification?
Rectification remains the responsibility of the appointed OEM/AMC or other responsible maintenance agency. NLETA's role remains within its independent assessment and agreed service scope.
Does a report automatically mean a certificate will be issued?
No. Certificate issuance is subject to the applicable service outcome, technical review, approval and document-control requirements.
Connect with NLETA
Need Guidance on the Appropriate Engineering Service?
Every lift has its own operating history, technical condition and assessment requirements. Submit your requirement through NLETA's designated service-selection process.