Dispute over Bayesian – when a shipyard sues a yacht’s owners 

The sinking of the superyacht Bayesian in August 2024 was a human tragedy. 

Today, it is also becoming one of the most fascinating legal disputes in the field of yacht law, covering the responsibility of the shipowner, the crew, and – indirectly – the shipyard itself. 

The case attracts attention not only due to the scale of the claims (about 790 million USD) but primarily because of the unusual role of the shipyard, which is suing the owner and the crew of the vessel, claiming that their actions have damaged the shipyard’s brand reputation. 

This is a rare and potentially groundbreaking situation. 

What happened on the Bayesian 

The Bayesian was a 56-meter sailing superyacht built by the Perini Navi shipyard, which was acquired in 2021 by The Italian Sea Group. 

The vessel was famous for its record-high, aluminium mast. 

On August 19, 2024, the yacht sank while anchored in Porticello, Sicily, as a result of a violent storm. 

Seven people lost their lives, including the owner – British tech entrepreneur Mike Lynch – and his daughter. Among the survivors was his wife, Angela Bacares, the owner of Revtom Ltd., the formal shipowner of the yacht. 

Following the accident, an investigation was initiated by the Marine Accident Investigation Branch (MAIB), the British counterpart of our Polish State Commission for Investigation of Marine Accidents (PKBWM).

Findings of the MAIB investigation 

The MAIB, with the support of experts from the University of Southampton, determined, among other things, that: 

• in the configuration of the yacht on the day of the accident (engine running, sails lowered, keel raised, low fuel levels – generally a high center of gravity),
• the vessel was susceptible to capsizing with a crosswind exceeding 63.4 knots,
• meteorological simulations indicated the possibility of gusts exceeding 87 knots,
• about 50% of the heeling moment was due to the wind load on the exceptionally tall mast. 

However, there is something else that is crucial – these characteristics were not described in the stability documentation available on board.

As a result, neither the owner nor the crew were aware of the actual danger in such conditions. 

The MAIB clearly stated that the report is not intended to assign blame and is not meant to be used in legal proceedings. 

And it is precisely at this point that the real legal dispute begins. 

Shipyard lawsuit: a technical defense or a brand image offensive? 

The Italian Sea Group has filed a lawsuit against: 

• Revtom Ltd. (the shipowner),
• the captain and two crew members. 

The claim is clear-cut:

– the cause of the sinking was the crew’s operational negligence, not the yacht’s design or construction. 

The shipyard also argues that: 

• the disaster led to a collapse in demand for Perini Navi yachts,
• no new unit of this brand has been sold since the accident,
• there has been a loss of business relationships, a decline in the company’s value, and reputational damage. 

And I must admit, this is a very interesting and bold legal strategy. 

Case from perspective of yacht law 

1. Manufacturersues the customer 

In yacht disputes, we more commonly see the reverse situation: the shipowner sues the shipyard for defects, delays, or design errors. 

Here, the shipyard goes on the offensive, attempting to shift full responsibility onto the yacht’s user. 

2. Crew’sResponsibility vs. shipowner’s responsibility 

From the perspective of maritime and yacht law, the shipowner is generally responsible for the actions of the captain and the crew (although the details of this responsibility may differ in some legal systems). 

This opens the way for claims – but (again, generally) only when the crew’s actions are negligent, clearly proven, and constitute the primary cause of the damage (this is when we talk about a causal link between the actions and the damage). 

3. Technicaldocumentationas a flashpoint 

The issue arises, however, if the dangerous characteristics of the vessel were not disclosed in the documentation. The question then becomes:

• can we talk about the crew’s negligence if they were acting within the knowledge provided by the manufacturer? 

This question will likely be one of the most important in the trial. 

Will anyone want to buy a yacht from a shipyard that sues its owners? 

This is a non-legal aspect, but it is extremely important. 

The superyacht market is based on: 

• trust,
• long-term relationships,
• a sense of „partnership” between the shipowner and the shipyard. 

A potential client may today ask themselves a very simple question: 

„What will happen if an accident occurs? Will the shipyard stand by my side, or against me?” 

Even if the lawsuit turns out to be legally justified, the chilling effect on the market is a real risk. 

Defending a brand in court – is this the right approach?

From a legal perspective, the answer is: 

– this is a strategy fraught with high risk.

• A court case solidifies the association of the brand with the disaster.
• A public dispute with the widow of the deceased owner creates reputational risks.
• Engaging in a debate with the findings of the MAIB (even if they are not formally admissible as evidence in the case) is difficult from a communication standpoint. 

Sometimes, a more effective brand defense strategy involves: 

• transparency,
• collaboration in determining the causes,
• modifying design or documentation standards, 

rather than an aggressive legal offensive. 

Conclusions 

The Bayesian case is one of the most fascinating contemporary cases in yacht law, as it combines: 

• the responsibility of the shipowner and crew,
• design and informational risks,
• the reputational responsibility of the manufacturer,
• and the question of the boundaries of judicial „brand defense”. 

Regardless of the outcome of the trial, this dispute will be closely analyzed within both the legal and yachting communities for a long time. It is highly likely that it will influence how shipyards will approach the construction of technical documentation, contracts, and crisis management strategies in the future.