Module 1: NEXUS for 3.4U Inspectors
🎯 What You'll Learn
By the end of this module, you'll understand:
- Why clients use NEXUS and your role in the inspection data chain
- The 5 core concepts you need to start your first job (ignoring the other 95% for now)
- How to navigate a workpack and understand your tasks
- The basic workflow from receiving a job to completing inspection data entry
- Common mistakes to avoid in your first week
Welcome to NEXUS - Let's Cut Through the Overwhelm
Here's the truth: When you first open NEXUS, you'll see screens full of buttons, menus, panes, grids, and options. It's overwhelming. Hundreds of features staring at you.
Here's what you actually need: For your first inspection job, you need to know about 5 things. That's it.
What Is NEXUS?
NEXUS IC (Integrity Client) is inspection management software used by major offshore operators and clients like:
- TechnipFMC
- Subsea7
- Shell
- BP
- Equinor
- And many others
What it does: NEXUS manages the entire lifecycle of subsea asset inspections:
- Asset hierarchies (what exists where)
- Inspection planning (what needs inspecting when)
- Data collection (recording inspection results)
- Anomaly tracking (defects and their remediation)
- Risk assessment (integrity scoring)
- Reporting (client deliverables)
Why Clients Use NEXUS
Instead of: Spreadsheets, Word docs, emails flying everywhere, data lost, inconsistent formats
NEXUS provides:
- Single source of truth - All inspection data in one place
- Historical tracking - See what was found on this asset 5 years ago
- Standardized data - Everyone records the same way
- Traceability - Who inspected what, when, and what they found
- Automated reporting - Generate client reports with one click
- Risk-based planning - Prioritize inspections based on asset condition
Understanding the Inspection Data Chain
You're not working in isolation. Your NEXUS data flows through a chain of people and purposes:
📍 The Journey of Your Data
-
You (3.4U Inspector)
Record inspection events, findings, measurements, photos in NEXUS during/after the dive or ROV run. -
Client Representative
Reviews your data for completeness and accuracy. Asks questions if something's unclear. Approves or requests corrections. -
Integrity Engineer
Analyzes your findings. Assesses risk. Decides if anomalies need action. Plans future inspections. -
Asset Owner/Operator
Makes business decisions: repair now? defer? change inspection frequency? All based on YOUR data.
What Makes Good Inspection Data?
Good data is:
- Accurate - Measurements are correct, descriptions match reality
- Complete - All required fields filled, photos attached, measurements recorded
- Timely - Entered during/immediately after inspection while fresh
- Clear - Someone reading it 5 years later understands what you found
- Consistent - Uses standard terminology and classifications
Bad data is:
- Vague: "some damage noted" (what kind? where? how severe?)
- Incomplete: Missing photos or measurements
- Late: Entered days later from memory (details forgotten)
- Inconsistent: Using non-standard terminology
The 5 Core Concepts You Must Understand
Everything in NEXUS revolves around these 5 concepts. Master these, and the rest makes sense:
How They Connect
🔗 Real Example - GVI on Subsea Manifold
Asset: "XYZ Field - Manifold M001"
Workpack: "2024-Q1-Subsea-Inspection"
Task: "GVI of Manifold M001 - Check all flanges, anodes, and structural integrity"
Event: "GVI performed on 15-Jan-2024 by ROV Hercules, Inspector: J.Smith"
Findings:
- Finding 1: "Corrosion on NE corner flange - 25mm dia patch, depth ~2mm"
- Finding 2: "Anode #3 (NW) depleted to 40% remaining"
- Finding 3: "Marine growth - light coverage across top plate"
Asset = The house
Workpack = The inspection contract
Task = "Inspect the roof"
Event = You actually inspecting the roof on Tuesday
Finding = "Found 3 missing tiles and moss growth"
Additional Terms You'll Encounter
Understanding Your Workpack
When you arrive on the vessel, the client rep will assign you a workpack. This is your job package - everything you need to complete your inspections.
What's Inside a Workpack?
A workpack contains:
- Tasks list - What you need to inspect
- Asset information - Details about each item
- Previous inspection data - Historical context
- Drawings/schematics - Visual references
- Instructions - Specific requirements from client
NEXUS Workpacks screen showing workpack list and tasks pane
Reading Your Task List
Each task tells you:
- Asset - What to inspect (e.g., "Manifold M001")
- Event Type - How to inspect it (e.g., "GVI", "UT", "ACFM")
- Location - Where it is (KP, coordinates, or description)
- Instructions - Specific requirements ("Focus on weld areas", "Check all anodes")
- Status - Complete or incomplete
📋 Example Task Entry
Task #147:
- Asset: XYZ-M001 (Subsea Manifold)
- Event Type: GVI (General Visual Inspection)
- Instructions: Visual inspection of all external surfaces. Check structural integrity, corrosion, marine growth, anodes condition, and flange connections.
- Approximate Time: 45 minutes
- Status: Incomplete
Pre-Job Preparation (What to Do BEFORE the ROV Launches)
-
Review the workpack task list
Know what you're inspecting and in what order -
Look at the assets
Check asset information - what is it? What's it made of? When was it installed? -
Review previous inspections
What was found last time? Are there known issues to monitor? -
Study drawings/schematics
Orient yourself - where are the anodes? Where are critical welds? -
Read task instructions carefully
Client may have specific requirements or areas of concern
Your First Inspection - Complete Workflow
Let's walk through a real scenario from start to finish:
🎬 SCENARIO: GVI on Subsea Manifold
Situation: You're on the vessel. ROV is ready. Client rep hands you workpack "2024-Q1-Subsea" with 3 tasks. First task: GVI on Manifold XYZ-M001.
Phase 1: Pre-Inspection (Before ROV Launch)
-
Open NEXUS and navigate to WORKPACKS
Find your workpack: "2024-Q1-Subsea" -
Select the workpack
Tasks pane appears at bottom showing your 3 tasks -
Click on Task #1: "GVI Manifold XYZ-M001"
Review task details, instructions, asset information -
Go to INSPECTION screen
Navigate asset tree to find "XYZ-M001" -
Review historical data
Check previous GVI events - what was found before? -
Open drawings/schematics
Orient yourself to the manifold layout
Phase 2: During Inspection (ROV in Water)
What you're doing during the actual inspection:
Taking detailed notes:
- Paper notebook or clipboard with forms
- Note every observation with timestamps
- Record locations (compass directions, measurements from reference points)
- Sketch quick diagrams if helpful
- Log video timestamps for key findings
- Record measurements as taken
Real-time data entry (if time permits):
- Some inspectors enter data into desktop NEXUS during inspection
- Requires good multitasking and familiarity with system
- Only feasible if not primary ROV/dive supervisor
- More common: focus on inspection, enter data afterward
Phase 3: Recording the Inspection (Creating the Event)
-
Go to INSPECTION screen
Select the asset "XYZ-M001" in the asset tree -
Go to Events pane (bottom right)
This is where you'll create the inspection event -
Click "Add Event"
A dialog opens to create new event -
Fill in Event Details:
• Event Type: GVI
• Date: Today's date
• Inspector: Your name
• Task: Select "Task #1: GVI Manifold XYZ-M001"
• Duration: How long it took
• Notes: General observations -
Save the Event
Now you have a GVI event record linked to your task
Add Event dialog showing fields to complete
Phase 4: Adding Findings
If you found something during inspection:
-
With your event selected, go to Findings pane
Usually below or next to the Events pane -
Click "Add Finding"
A finding dialog opens -
Describe what you found:
• Finding Type: Corrosion / Damage / Wear / Marine Growth / etc.
• Location: "NE corner flange"
• Description: Clear, detailed description
• Dimensions: Length, width, depth (if applicable)
• Severity: Minor / Moderate / Severe
• Photos: Attach images -
Repeat for each finding
One finding record per distinct issue
Phase 5: Photos and Documentation
-
Attach photos to your findings
Each finding should have photos showing the issue -
Add overview photos to the event
General condition shots even if no findings -
Annotate photos if needed
Add arrows, measurements, labels to clarify -
Link video timestamps
Note where in the ROV video each finding appears
Phase 6: Quality Check
Before handing over to client rep:
- ☐ Event created and linked to correct task
- ☐ All required fields completed
- ☐ All findings have descriptions, measurements, and photos
- ☐ Photos are clear and properly labeled
- ☐ Locations are specific (not vague)
- ☐ Measurements are in correct units
- ☐ All data saved and visible in NEXUS
- ☐ Task marked as complete
- ☐ Client-specific requirements addressed
Phase 7: Handover
-
Mark task as complete
Task status changes to "Completed" -
Double-check all data is saved
Refresh NEXUS to confirm everything is there -
Inform client rep
"Task #1 complete, ready for review" -
Be available for questions
Client rep may ask for clarifications or additional details
Common Mistakes to Avoid (Your First Week)
❌ Mistake #1: Vague Descriptions
Bad: "Some corrosion observed"
Good: "Corrosion patch on NE corner flange, approx 25mm diameter, depth ~2mm, rust color, active (no marine growth coverage)"
❌ Mistake #2: Missing Measurements
Bad: "Large crack noted"
Good: "Crack in weld seam, length 150mm, width 2mm, depth not measurable from visual, oriented vertically"
❌ Mistake #3: Non-Specific Locations
Bad: "Damage on side"
Good: "Impact damage on west-facing support leg, 2.5m above mudline, 300mm below upper flange"
❌ Mistake #4: Combining Multiple Issues
Bad: One finding: "Corrosion on multiple flanges and some marine growth"
Good: Separate findings for each flange corrosion location, plus separate finding for marine growth
❌ Mistake #5: Poor Quality Photos
Bad: Blurry, no scale reference, unclear what you're showing
Good: Clear, in focus, scale reference visible, annotated if needed, multiple angles
❌ Mistake #6: Entering Data Days Later
Bad: Waiting 3 days, entering from memory, forgetting details
Good: Same day entry while observations fresh, details accurate
❌ Mistake #7: Not Reviewing Previous Data
Bad: Treating every inspection as fresh, missing trends
Good: Checking if corrosion has progressed, if known issues have worsened
❌ Mistake #8: Ignoring Task Instructions
Bad: Generic inspection, missing client-specific requirements
Good: Reading instructions, addressing specific areas of concern client mentioned
NEXUS Interface - What You Need to Know
NEXUS has 6 main screens. As a 3.4U inspector, you'll use 2 of them regularly:
🎯 Screens You'll Use Daily:
1. WORKPACKS - Your job list
- See your assigned workpacks
- View task lists
- Check what's complete vs incomplete
- Access task instructions
2. INSPECTION - Where you record data
- Navigate asset hierarchy
- Create events
- Add findings
- Attach photos
- Review previous inspections
- Access drawings
⏭️ Screens You Can Ignore (For Now):
ASSETS - Asset management, configuration, planning templates
LIBRARY - Document storage, procedures, drawings library
PLANNING - Campaign planning, scheduling, client rep territory
Key Interface Elements
Asset Tree (Left Side):
- Hierarchical view of all assets
- Click to expand/collapse
- Select asset to view its data
Main Work Area (Center):
- Changes based on what you're viewing
- Task lists, event grids, forms appear here
Detail Panes (Right/Bottom):
- Events, Findings, Photos, Drawings
- Can be arranged/resized
- Double-click headers to dock/undock
Toolbar (Top):
- Add, Edit, Delete buttons
- Import, Export, Reports
- Context-sensitive (changes based on what's selected)
NEXUS main interface showing labeled regions: Asset Tree, Work Area, Detail Panes, Toolbar
Keyboard Shortcuts (Time Savers)
| Shortcut | Action |
|---|---|
| Ctrl + N | Add new (event, finding, etc.) |
| Ctrl + E | Edit selected item |
| Ctrl + D | Delete selected item |
| F5 | Refresh / Reload data |
| Ctrl + F | Find / Search |
| Space | Open selected document/drawing |
👔 For Client Representatives: Reviewing Inspector Data
Your role: Quality assurance and approval of inspection data before it goes to the client.
What to Check When Reviewing:
- Completeness: All tasks marked complete? All events created?
- Descriptions: Clear, specific, detailed enough for integrity engineer?
- Measurements: Present where required? Units correct?
- Photos: Clear, in focus, properly labeled, scale reference visible?
- Locations: Specific enough to find the issue again next inspection?
- Findings: Properly classified? Severity appropriate?
- Consistency: Terminology matches client standards?
- Anomalies: Significant findings flagged for tracking?
Common Feedback to Give Inspectors:
- "Can you add measurements to Finding #3?"
- "Photo of the corrosion patch is unclear - can you provide a closer shot?"
- "Location says 'side' - which side specifically? Need compass direction."
- "Finding description is good but needs dimensions."
- "This looks significant - should we raise an anomaly?"
How to Provide Feedback in NEXUS:
- Add comments directly to events/findings
- Use email/Slack to communicate with inspector
- Don't change inspector's data without discussing first
- If corrections needed, ask inspector to make them (traceability)
🎓 Module 1 Key Takeaways
You now understand:
- ✅ NEXUS is inspection management software used by major clients
- ✅ Your data flows through a chain: You → Client Rep → Integrity Engineer → Asset Owner
- ✅ The 5 core concepts: Asset, Workpack, Task, Event, Finding
- ✅ How to read a workpack and understand your tasks
- ✅ The basic workflow from pre-inspection to handover
- ✅ Common mistakes to avoid in your first week
- ✅ Which NEXUS screens you'll use daily (Workpacks & Inspection)
Most important lesson: Good inspection data is accurate, complete, timely, clear, and consistent. It directly impacts multi-million pound decisions.
📝 Practice Exercise
Before moving to Module 2, try this mental walkthrough:
🎯 Exercise: Your First GVI
Scenario: You're assigned a GVI on subsea manifold "ABC-M002". During the ROV inspection, you observe:
- Light marine growth across the top plate
- Corrosion on the northwest flange connection (estimated 30mm patch, 1-2mm deep)
- Anode #2 appears 60% depleted
- All structural components intact, no damage
Questions:
- How many findings would you create?
- What information would you include for the corrosion finding?
- What photos would you take?
- Would any of these warrant an anomaly? Why or why not?
Answers:
Click to reveal answers
1. Number of findings: 3 separate findings
- Finding 1: Marine growth
- Finding 2: Corrosion on NW flange
- Finding 3: Anode depletion
2. Corrosion finding information:
- Type: Corrosion
- Location: Northwest flange connection
- Description: Rust-colored corrosion patch, appears active
- Dimensions: Approximately 30mm diameter, depth 1-2mm (estimated)
- Severity: Minor to Moderate (depending on client standards)
3. Photos needed:
- Overview shot of entire manifold (context)
- Close-up of NW flange showing corrosion
- Extreme close-up of corrosion with scale reference
- Photo of Anode #2 showing depletion
- Photo of marine growth coverage
- Overview of all 4 sides for completeness
4. Anomaly consideration:
- Marine growth: Probably not - this is common and expected
- Corrosion: Maybe - depends on client standards and criticality. If on a Class 1 asset or if progressing from previous inspection, yes.
- Anode depletion: Maybe - 60% might be within normal range, but if approaching end of life or inspection interval coming up, could raise anomaly to track.
When unsure: Ask the client rep. They know client-specific thresholds.
🚀 What's Next: Module 2
You now have the foundation. In Module 2: Understanding NEXUS Asset Hierarchy, you'll learn:
- How subsea assets are organized in NEXUS
- Navigating complex asset trees
- Understanding asset relationships (parent-child)
- Finding specific assets quickly
- Asset information groups and what they mean
- Why hierarchy matters for inspection planning
- Module 3: Your First Workpack - Complete walkthrough
- Module 4: Recording Events & Findings - Deep dive
- Module 5: Excel Export & Data Management
- Module 6: NDT Data Entry (UT, ACFM, MPI)
- Module 7: Working with Video Grabs & Photos
- Module 8: Quality Checks & Client Handover
Module 1 Complete! 🎉
You've learned the fundamentals of NEXUS for 3.4U inspectors.
📥 Download: Quick Reference PDF | Workflow Checklist PDF
Part of the Beyond the Surface NEXUS Training Series
