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UWILD Inspection — What It Is, What the Report Includes, and Why It Matters

  • vladearley
  • Dec 4
  • 2 min read
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🛳 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:


  1. HD video (organized by areas)

  2. Photo archive

  3. PDF UWILD inspection report

  4. Defect list table

  5. 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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