CAPTAIN of the doomed Bayesian superyacht James Cutfield was grilled by cops for over two hours as rescuers have discovered a possibly fatal mistake made onboard.
Divers found that the keel, a crucial part of the boat's structure which helps keep it balanced, had been raised when the yacht was anchored off shore.
Captain Cutfield, 51, managed to escape from the vessel as it plunged to the bottom of the ocean and is recovering in hospital, his brother revealed today.
One passenger is still missing after five bodies were located inside the wreckage, though so far only four have been recovered as the search came to an end for the day.
An official claimed that "UK's Bill Gates" Mike Lynch and his daughter Hannah, 18 were among the dead.
Yacht's chef Ricardo Thomas' body was found near the wreck on Monday.
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The identity of the further two bodies located in the vessel are yet to be confirmed.
Jonathan and Judy Bloomer were also missing - along with Chris and Neda Morvillo.
Cutfield, from New Zealand, was one of the 15 survivors of the boat that sank in a storm off the coast of Porticello, Sicily.
He admitted that the crew "didn't see it coming' when the water tornado struck the boat in the early hours.
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Police, who have been interviewing survivors from the tragedy, questioned him for several hours about the disaster, Giornale Di Sicilia reports.
It comes as divers have discovered that the boat's keel was raised as they explore the intact wreck on the bottom of seabed.
The keel operates as the main structural backbone of the yacht, filled with heavy materials, keeping it balanced and helping it to correct in stormy waters.
Dan Green, Research & Investigations lead at eSysman SuperYachts, told The Mirror that if the keel was raised this would harm the boat's stability and could explain why it sank so quickly.
He said: "The keel when lowered increases the stability of the vessel.
"When raised, this reduces stability as the centre of gravity is raised, as the keel is also weighted with lead.
"Another effect of the keel being in the up position is the vessel will not self-right if it leans far over.
"If you add to that the possibility of hatches being opened on the vessel that would explain why it's saying [sinking] so quickly."
Cutfield had captained luxury yachts for eight years and had previously worked on building them for 30 years.
Before working for Mr Lynch, he worked for a Turkish billionaire.
Italian media originally named him as "Catfield" - before his family corrected his name in the press in New Zealand.
His wife Cristina has flown to be with him in Italy.
It comes as...
- The bodies of Mike Lynch & his daughter Hannah, 18, were recovered from the sunken superyacht
- Another two bodies were found in the search for the missing passengers
- Lynch's shell-shocked wife revealed how she was awoken by a 'tilt' as the yacht sank
- The captain of the Bayesian broke his silence on the horror storm and was quizzed by cops for over two hours
- Experts believe the yacht's 'tallest mast in the world' may have contributed to the disaster after a freak ‘Black Swan’ weather event struck
- Pictures showed the tiny raft that saved up to 15 people
- Frantic text messages from the survivors revealed the chaos
Cutfield’s brother Mark told the NZ Herald his brother was a “very good sailor".
And he added that Cutfield is “very well respected” in the Mediterranean.
Mark said the captain is currently recovering in hospital, but managed to escape with injuries that were not "too dramatic".
Rescuers entered day three of the search sending in an underwater robot to probe the wreck.
Divers have been hampered by time crunches, narrow entrances and floating debris on the boat as they battle to get inside the cabins.
The 184ft Bayesian sunk was struck by a twister-like waterspout during extreme weather early on Monday morning and sank some 164ft to the bottom of the sea.
Fifteen people were rescued from the doomed boat as it sank, with the yacht chef later found dead.
It comes as officials have launched an investigation into the tragedy to establish whether crew on the boat are criminally liable.
One expert at the scene in Sicily told reporters an early focus would be on whether the access hatches into the vessel were closed before the tornado struck.
Luca Mercalli, president of the Italian Meteorological Society, also said that, in light of the weather warnings, the crew should have woken the guests and given them life jackets.
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Prosecutors will also examine whether measures such as the use of yacht's retractable keel, which adds extra stability and acts as a counterweight to the large mast, were deployed.