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The wreck of Italy's Costa Concordia cruise ship begins to emerge from water on September 17, 2013 near the harbour of Giglio Porto. ANDREAS SOLARO/AFP/Getty Images ( 522955642 )

The wreck of Italy's Costa Concordia cruise ship begins to emerge from water on September 17, 2013 near the harbour of Giglio Porto. ANDREAS SOLARO/AFP/Getty Images ( 522955953 )

The wreck of Italy's Costa Concordia cruise ship sits upright on September 17, 2013 near the harbour of Giglio Porto. Salvage as orkers attempted to raise the cruise ship in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", rotating the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. ANDREAS SOLARO/AFP/Getty Images ( 522955372 )

The wreck of Italy's Costa Concordia cruise ship is almost upright as alvage workers attempted to raise the cruise ship in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", rotating the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. ANDREAS SOLARO/AFP/Getty Images ( 522955694 )

The wreck of Italy's Costa Concordia cruise ship begins to emerge from water on September 17, 2013 near the harbor of Giglio Porto. ANDREAS SOLARO/AFP/Getty Images ( 522954281 )

Workers stand in front of the Costa Concordia ship lying on its side on the Tuscan Island of Giglio, Italy, early Monday morning, Sept. 16, 2013. An international team of engineers is trying a never-before attempted strategy to set upright the luxury liner, which capsized after striking a reef in 2012 killing 32 people. (AP Photo/Andrew Medichini) ( Italy Ship Aground )

The wreck of Italy's Costa Concordia cruise ship begins to emerge from water on September 16, 2013 near the harbor of Giglio Porto. Salvage workers attempt to raise the cruise ship in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotate the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. VINCENZO PINTO/AFP/Getty Images ( 522952166 )

Members of the US salvage company Titan and Italian firm Micoperi work at the wreck of Italy's Costa Concordia cruise ship near the harbor of Giglio Porto, early on September 16, 2013. Salvage workers attempt to raise the cruise ship today in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. VINCENZO PINTO/AFP/Getty Images ( 522931823 )

The parbuckling project to raise the stricken Costa Concordia continues on September 16, 2013 in Isola del Giglio, Italy. Work begins today to right the stricken Costa Concordia vessel, which sank on January 12, 2012. If the operation is successful, it will then be towed away and scrapped. The procedure, known as parbuckling, has never been carried out on a vessel as large as Costa Concordia before. (Photo by Marco Secchi/Getty Images) ( 180773563 )

Italy's Costa Concordia cruise ship during sunset near the harbor of Giglio Porto as it is slowly uprighted on September 16, 2013. Salvage workers attempt to raise the cruise ship tonight, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. ANDREAS SOLARO/AFP/Getty Images ( 522946318 )

A dark line, marking a previously submerged part, gives evidence of the movement of the Costa Concordia ship, lying on its side on the Tuscan Island of Giglio, Italy, Monday, Sept. 16, 2013. An international team of engineers is trying a never-before attempted strategy to set upright the luxury liner, which capsized after striking a reef in 2012 killing 32 people. (AP Photo/Andrea Sinibaldi, Lapresse) ( Italy Ship Aground )

Engineers at work on the Costa Concordia ahead of the start of the salvage operation on September 16, 2013 in Isola del Giglio, Italy. Work begins today to right the stricken Costa Concordia vessel, which sank on January 12, 2012. If the operation is successful, it will then be towed away and scrapped. The procedure, known as parbuckling, has never been carried out on a vessel as large as Costa Concordia before. (Photo by Marco Secchi/Getty Images) ( 180679473 )

Caissons attached to the side of the stricken Costa Concordia and the cabling used to pull the ship upright are seen as the parbuckling project to raise the ship continues on September 16, 2013 in Isola del Giglio, Italy. Work begins today to right the stricken Costa Concordia vessel, which sank on January 12, 2012. If the operation is successful, it will then be towed away and scrapped. The procedure, known as parbuckling, has never been carried out on a vessel as large as Costa Concordia before. (Photo by Laura Lezza/Getty Images) ( 180777150 )

A general view shows the wreck of Italy's Costa Concordia cruise ship which begins to emerge from water near the harbor of Giglio Porto on September 16, 2013. Salvage workers will attempt to raise the cruise ship today, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. VINCENZO PINTO/AFP/Getty Images ( 522940922 )

Members of the US salvage company Titan and Italian firm Micoperi work at the wreck of Italy's Costa Concordia cruise ship near the harbor of Giglio Porto on September 16, 2013. Salvage workers will attempt to raise the cruise ship today, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. ANDREAS SOLARO/AFP/Getty Images ( 522931144 )

Members of the US salvage company Titan and Italian firm Micoperi work at the wreck of Italy's Costa Concordia cruise ship near the harbor of Giglio Porto on September 16, 2013. Salvage workers will attempt to raise the cruise ship today, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. ANDREAS SOLARO/AFP/Getty Images ( 522931066 )

The parbuckling project to raise the stricken Costa Concordia continues on September 16, 2013 in Isola del Giglio, Italy. Work begins today to right the stricken Costa Concordia vessel, which sank on January 12, 2012. If the operation is successful, it will then be towed away and scrapped. The procedure, known as parbuckling, has never been carried out on a vessel as large as Costa Concordia before. (Photo by Marco Secchi/Getty Images) ( 180773382 )

The wreck of Italy's Costa Concordia cruise ship begins to emerge from water near the harbor of Giglio Porto on September 16, 2013. Salvage workers will attempt to raise the cruise ship today, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. VINCENZO PINTO/AFP/Getty Images ( 522939568 )

Small boats pass close to anti-pollution floating barriers settled around the wreck of Italy's Costa Concordia cruise ship, on September 16, 2013. Salvage workers attempt to raise the cruise ship today in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and VINCENZO PINTO/AFP/Getty Images ( 522930262 )

People look at the wreck of Italy's Costa Concordia cruise ship near the harbor of Giglio Porto on September 16, 2013. Salvage workers attempt to raise the cruise ship today, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. VINCENZO PINTO/AFP/Getty Images ( 522931678 )

Members of the US salvage company Titan and Italian firm Micoperi work at the wreck of Italy's Costa Concordia cruise ship near the harbor of Giglio Porto on September 16, 2013. Salvage workers will attempt to raise the cruise ship today, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. ANDREAS SOLARO/AFP/Getty Images ( 522931096 )

The Costa Concordia ship lies on its side on the Tuscan Island of Giglio, Italy, early Monday morning, Sept. 16, 2013. An international team of engineers is trying a never-before attempted strategy to set upright the luxury liner, which capsized after striking a reef in 2012 killing 32 people. (AP Photo/Andrew Medichini) ( Italy Ship Aground )

Members of the US salvage company Titan and Italian firm Micoperi work at the wreck of Italy's Costa Concordia cruise ship near the harbor of Giglio Porto on September 16, 2013. Salvage workers attempt to raise the cruise ship today in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. VINCENZO PINTO/AFP/Getty Images ( 522938991 )

The Costa Concordia ship lies on its side on the Tuscan Island of Giglio, Italy,Monday, Sept. 16, 2013. An international team of engineers is trying a never-before attempted strategy to set upright the luxury liner, which capsized after striking a reef in 2012 killing 32 people. (AP Photo/Andrew Medichini) ( APTOPIX Italy Ship Aground )

Engineers board the stricken Costa Concordia to check cables during the parbuckling operation to raise the ship on September 16, 2013 in Isola del Giglio, Italy. Work begins today to right the stricken Costa Concordia vessel, which sank on January 12, 2012. If the operation is successful, it will then be towed away and scrapped. The procedure, known as parbuckling, has never been carried out on a vessel as large as Costa Concordia before. (Photo by Marco Secchi/Getty Images) ( 180783549 )

ISOLA DEL GIGLIO, ITALY - SEPTEMBER 16: Caissons attached to the side of the stricken Costa Concordia and the cabling used to pull the ship upright are seen as the parbuckling project to raise the ship continues on September 16, 2013 in Isola del Giglio, Italy. Work begins today to right the stricken Costa Concordia vessel, which sank on January 12, 2012. If the operation is successful, it will then be towed away and scrapped. The procedure, known as parbuckling, has never been carried out on a vessel as large as Costa Concordia before. (Photo by Laura Lezza/Getty Images) ( 180776376 )

The wreck of Italy's Costa Concordia cruise ship begins to emerge from water near the harbor of Giglio Porto on September 16, 2013. Salvage workers will attempt to raise the cruise ship today, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. VINCENZO PINTO/AFP/Getty Images ( 522939570 )

A pictures shows a part of the wreck of Italy's Costa Concordia cruise ship which begins to emerge from water near the harbor of Giglio Porto on September 16, 2013. Salvage workers will attempt to raise the cruise ship today, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", to rotated the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. VINCENZO PINTO/AFP/Getty Images ( 522940928 )

Titan and Micoperi workers are seen next to the stricken Costa Concordia on September 16, 2013 in Isola del Giglio, Italy. Work begins today to right the stricken Costa Concordia vessel, which sank on January 12, 2012. If the operation is successful, it will then be towed away and scrapped. The procedure, known as parbuckling, has never been carried out on a vessel as large as Costa Concordia before. (Photo by Laura Lezza/Getty Images) ( 180678974 )

In this three-photo combo taken, from top, at 12.04gmt, 16.33gmt and 17.52gmt, the Costa Concordia ship lies on its side on the Tuscan Island of Giglio, Italy, Monday, Sept. 16, 2013. In an unprecedented maritime salvage operation, engineers on Monday gingerly wrestled the hull of the shipwrecked Costa Concordia off the Italian reef where the cruise ship has been stuck since January 2012. But progress was much slower than predicted and the delicate operation to rotate the luxury liner from its capsized position to upright appeared likely to stretch into Tuesday. Never before has such an enormous cruise ship been righted, and the crippled Concordia didn't budge for the first three hours after the operation began, engineer Sergio Girotto told reporters. (AP Photo/Andrew Medichini) ( Italy Ship Aground )

Members of the US salvage company Titan and Italian firm Micoperi work at the wreck of Italy's Costa Concordia cruise ship near the harbor of Giglio Porto on September 15, 2013. The Italian island of Giglio made final preparations on September 15, 2013 on the eve of an unprecedented attempt to raise the 114,500-ton Costa Concordia cruise ship from its watery grave. The biggest salvage of a passenger ship ever attempted is to begin shortly after 6:00 am (0400 GMT) on September 16 and could last up to 12 hours. ANDREAS SOLARO/AFP/Getty Images ( 522931723 )

The wreck of Italy's Costa Concordia cruise ship begins to emerge from water on September 17, 2013 near the harbour of Giglio Porto. Salvage workers attempt to raise the cruise ship today and tonight, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", rotating the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. ANDREAS SOLARO/AFP/Getty Images ( 522955478 )

The wreck of Italy's Costa Concordia cruise ship begins to emerge from water on September 17, 2013 near the harbour of Giglio Porto. Salvage workers attempt to raise the cruise ship today and tonight, in the largest and most expensive maritime salvage operation in history, so-called "parbuckling", rotating the ship by a series of cables and hydraulic machines. Thirty-two people died when the ship, with 4,200 passengers onboard, hit rocks and ran aground off the island of Giglio on January 2012. ANDREAS SOLARO/AFP/Getty Images ( 522955634 )