UWILD Inspection — What It Is, What the Report Includes, and Why It Matters
- vladearley
- Dec 4
- 2 min read

🛳 What is UWILD?
UWILD (Underwater Inspection in Lieu of Dry-Docking) is an underwater inspection carried out instead of dry-docking, required by major classification societies (LR, DNV, BV, ABS, NK, etc.).
The purpose of UWILD is to confirm that the submerged parts of the vessel are safe, compliant, and meet class requirements — without taking the vessel out of service.
UWILD saves:
✔ Time
✔ Money
✔ Dry Dock charges
✔ Operational delays
⚙️ When UWILD is Required
UWILD is typically requested when:
A class survey becomes due (Special / Intermediate Survey)
Owners need a class extension without dry-dock
📑 What the UWILD Report Includes (Detailed Breakdown)
A professional UWILD report consists of three key components: visual evidence, technical assessment, and engineering recommendations.
🔹 1. Visual Evidence (CCTV + Photos)
HD underwater video
Close-up photos
Sector-by-sector footage
Overall condition & specific focus areas
Recorded by hull sectors: forepeak, midship, aft, and functional areas.
🔹 2. Structural Evaluation
Recorded condition of:
Hull plates
Keel / skeg
Cavitation damage
Corrosion
Cracks, dents, deformation
Rudder condition
Propeller blades
Stern gear
🔹 3. Components & Fittings
Sea chests
Gratings
ICCP / sacrificial anodes
Speed Log / echo sounders
Thruster tunnels & nozzles
Rudder stocks
Shaft line components
🔹 4. Functional Checks
Free propeller rotation
No foreign object entanglement
Clearance checks
🔹 5. Defect Documentation
Each issue documented as:
Location (frame number)
Photo / video evidence
Defect type
Preliminary risk level
🔹 6. Recommendations (by diving supervisor / engineer)
Repair required or not
Urgency level
Underwater solution options
Dry-dock necessity
🔹 7. Class Acceptance Summary
A final section written for:
Classification society
Insurers
Owners/Technical department
Superintendent
Required final statement:
✔ “SAFE FOR CONTINUED SERVICE”
📌 Why UWILD Documentation Matters
UWILD is not just diving — it is a legal and technical document that directly affects:
Class renewal
Insurance claims
Dry-dock timing
Operational safety
Budget planning
Downtime risk
Without proper reporting, UWILD loses its value.
💰 Cost & Time Benefits
Factor | UWILD | Dry-Dock |
Duration | 6–12 hours | 5–10 days |
Cost | low | very high |
Voyage interruption | none | mandatory |
Delay risk | minimal | significant |
Shipowners use UWILD to maintain class and stay operational.
⚓ MaxiDive UWILD Advantages
Class-approved team (LR, DNV, BV, ABS, NK, KR, CCS, RINA)
HD CCTV documentation
Same-day reporting
Engineering recommendations included
24/7 emergency deployment
🧾 Deliverables
You receive:
HD video (organized by areas)
Photo archive
PDF UWILD inspection report
Defect list table
Technical recommendations
All in class-acceptable format.
📩 Need a UWILD inspection and class-approved reporting?
Send us your vessel name, ETA and port —confirmation in 60 minutes.
⚓ MaxiDive — 24/7 Underwater Inspection & Reporting


















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