a large red boat sitting on top of a body of water

Marine Casualty Investigation

A Marine Casualty Investigation involves the detailed technical analysis of damage sustained by a vessel following an incident at sea or in port.

In Spain, the intervention of a specialized Maritime Expert Witness allows determination of the cause of the casualty, assessment of hull structural integrity and identification of technical responsibilities, in accordance with applicable maritime regulations and Naval Engineering principles.

Technical Investigation Methodology

The expert intervention includes:

  • On-site vessel inspection

  • Technical and photographic documentation

  • Review of operational background

  • Structural assessment of hull and onboard systems

  • Analysis of environmental and operational conditions

The objective is to reach objective, technically substantiated conclusions.

man in white shirt and gray pants standing on rocky shore near brown ship during daytime
man in white shirt and gray pants standing on rocky shore near brown ship during daytime

Collisions

In collision cases, the assessment includes:

  • Impact zone analysis

  • Structural deformations

  • Energy transfer evaluation

  • Possible navigational or maneuvering failures

  • Damage to load-bearing structural elements

This analysis determines the real extent of the damage and its impact on structural safety and seaworthiness.

A ship that is sitting in the water
A ship that is sitting in the water

Groundings

Groundings may cause hidden damage to:

  • Keel and bottom structure

  • Frames and reinforcements

  • Internal structural components

  • Propulsion systems

Technical investigation evaluates whether the vessel maintains its structural integrity after seabed impact.

ship on shore during daytime
ship on shore during daytime

Fire Damage

In fire-related casualties, the analysis includes:

  • Structural exposure to high temperatures

  • Loss of mechanical strength

  • Damage to electrical and propulsion systems

  • Stability evaluation after firefighting intervention

A technical assessment is essential to determine repair feasibility and regulatory compliance.

a large boat in the water near a large ship
a large boat in the water near a large ship

Flooding and Water Ingress

Investigation of water ingress includes:

  • Identification of the point of entry

  • Assessment of watertight compartmentation

  • Impact on vessel stability

  • Determination of structural or maintenance failures

This analysis is critical in cases involving partial sinking or severe flooding incidents.

A cargo ship sails on the ocean with seagulls flying.
A cargo ship sails on the ocean with seagulls flying.

Structural Failures

In cases of structural failure, the assessment evaluates:

  • Material fatigue

  • Structural buckling

  • Advanced corrosion

  • Design or repair defects

Technical conclusions must be based on Naval Engineering criteria and applicable maritime standards.

brown and white ship on sea shore during daytime
brown and white ship on sea shore during daytime

Determination of Technical Responsibility

The investigation may conclude on:

  • Maintenance deficiencies

  • Operational errors

  • Structural defects

  • Regulatory non-compliance

The expert opinion must be technically defendable in court or before insurance companies.

Man leans on railing of a white ferry boat
Man leans on railing of a white ferry boat