Police and rescue workers investigate at the scene following the Friday April 29 helicopter crash on the coast of Norway near Bergen, Sunday May 1, 2016. Emergency crews salvaged the wrecked fuselage of the Airbus helicopter from the sea Saturday, along with the flight recorders, and retrieved the rotor blades following the crash which killed the 13 people on board. (Torstein Boe / NTB Scanpix via AP) NORWAY OUT
The Associated Press
HELSINKI (AP) - The oil-rig helicopter that crashed in western Norway, killing 13 people, gave no mayday call or indicated it was in trouble, Norwegian investigators said Monday.
Norway's Accident Investigation Board said the process of retrieving data from the flight and cockpit recorders had been completed and the quality of the data was good. It was being sent back to Norway from Britain, where investigators had extracted the information.
Kare Halvorsen of the Norwegian agency said the information so far does not indicate a problem on board, but acknowledged that investigators were aware of "videos on the Internet" that seemed to show a helicopter rotor that was propelled through the air immediately before the crash on a tiny island near the city of Bergen.
Halvorsen, who heads the board's aviation department, said it was too early to say what caused the accident.
"We don't want to speculate about anything yet," he said. "We are in the process of gathering the information."
The victims - 11 Norwegians, one Briton and one Italian - were aboard the Airbus EC-225 helicopter that was flying from an offshore rig in the North Sea to Bergen when it crashed Friday on the island of Turoey.
The National Criminal Investigation Service in Oslo said Monday it had identified all the victims. Police in western Norway released the names of seven victims but said the families of the remaining six did not want to their names released. Their ages ranged between 32 and 60, and they worked for several oil and gas companies.
After the accident, Norway's aviation agency banned such Airbus helicopters from flying in Norway or near Norwegian offshore facilities and Britain's Civil Aviation Authority grounded all commercial passenger flights using the Airbus EC-225LP helicopter except for search-and-rescue operations.
Helicopter rotor blades are loaded onto a truck following the Friday April 29 helicopter crash on the coast of Norway near Bergen, Sunday May 1, 2016. Emergency crews salvaged the wrecked fuselage of the Airbus helicopter from the sea Saturday along with the flight recorders, and retrieved the rotor blades following the crash which killed the 13 people on board. (Torstein Boe / NTB scanpix via AP) NORWAY OUT
The Associated Press
An image released by Accident Investigation Board Norway, Sunday May 1, 2016, showing the twisted wreckage of the salvaged helicopter which crashed Friday April 29, west of Bergen, Norway, as it is lifted aboard a rescue vessel. The helicopter was salvaged along with the flight recorder on Saturday April 30, as investigators continue to examine the incident, which left 13 people dead. (AIBN / NTB scanpix via AP) NORWAY OUT
The Associated Press
Norway's Prime minister Erna Solberg and Statoil's CEO Eldar Saetre talk to the press after a meeting with the families of the people who died in the helicopter crashed Friday, on the island Turoy, just outside of Bergen, in Norway, Saturday, April 30, 2016. Emergency crews pulled the wrecked fuselage of an Airbus EC-225 helicopter out of the sea Saturday off western Norway after a crash that killed all 13 people on board. The helicopter was carrying workers from an offshore rig in the North Sea - the Statoil-operated Gullfaks B oil field - before it went down Friday on Turoey, a tiny island outside Bergen, Norway's second-largest city. Eleven Norwegians, one Briton and one Italian were aboard. (Terje Bendiksby/NTB scanpix via AP) NORWAY OUT
The Associated Press
Police and rescue workers patrol the area where a helicopter crashed Friday, on the island Turoy, just outside of Bergen, in Norway, Saturday, April 30, 2016. Emergency crews pulled the wrecked fuselage of an Airbus EC-225 helicopter out of the sea Saturday off western Norway after a crash that killed all 13 people on board. The helicopter was carrying workers from an offshore rig in the North Sea - the Statoil-operated Gullfaks B oil field - before it went down Friday on Turoey, a tiny island outside Bergen, Norway's second-largest city. Eleven Norwegians, one Briton and one Italian were aboard. (Vidar Ruud /NTB scanpix via AP) NORWAY OUT
The Associated Press
An image released by Accident Investigation Board Norway, Sunday May 1, 2016, showing the memory unit retrieved from the Flight Data and Cockpit Voice Recorder of the salvaged helicopter which crashed Friday April 29, west of Bergen, Norway. The helicopter was salvaged along with the flight recorder on Saturday April 30, as investigators continue to examine the incident, which left 13 people dead. (AIBN / NTB scanpix via AP) NORWAY OUT
The Associated Press
A rescue vessel lifts up parts of the helicopter which crashed Friday, on the island Turoy, just outside of Bergen, in Norway, Saturday, April 30, 2016. Emergency crews pulled the wrecked fuselage of an Airbus EC-225 helicopter out of the sea Saturday off western Norway after a crash that killed all 13 people on board. The helicopter was carrying workers from an offshore rig in the North Sea - the Statoil-operated Gullfaks B oil field - before it went down Friday on Turoey, a tiny island outside Bergen, Norway's second-largest city. Eleven Norwegians, one Briton and one Italian were aboard. (Vidar Ruud /NTB scanpix via AP) NORWAY OUT
The Associated Press
A police officer talks to members of the media, during an inspection of the area where a helicopter crashed Friday, on the island Turoy, just outside of Bergen, in Norway, Saturday, April 30, 2016. Emergency crews pulled the wrecked fuselage of an Airbus EC-225 helicopter out of the sea Saturday off western Norway after a crash that killed all 13 people on board. The helicopter was carrying workers from an offshore rig in the North Sea - the Statoil-operated Gullfaks B oil field - before it went down Friday on Turoey, a tiny island outside Bergen, Norway's second-largest city. Eleven Norwegians, one Briton and one Italian were aboard. (Vidar Ruud /NTB scanpix via AP) NORWAY OUT
The Associated Press
A recovery vessel lifts up parts of a crashed helicopter from off the island of Turoey, near Bergen, Norway, as emergency workers on the shoreline attend the scene Friday, April 29, 2016. The helicopter carrying around 13 people from an offshore oil field crashed Friday near the western Norwegian city of Bergen, police said. All aboard the helicopter were killed. (Torstein Boe/NTB scanpix via AP) NORWAY OUT
The Associated Press
A recovery vessel lifts up parts of a crashed helicopter from off the island of Turoey, near Bergen, Norway, as emergency workers on the shoreline attend the scene Friday, April 29, 2016. The helicopter carrying around 13 people from an offshore oil field crashed Friday near the western Norwegian city of Bergen, police said. All aboard the helicopter were killed. (Vidar Ruud/NTB scanpix via AP) NORWAY OUT
The Associated Press
A search and rescue vessel patrols off the coast of the island of Turoey, near Bergen, Norway, as emergency workers attend the scene after a helicopter crashed believed to be have 13 people aboard, Friday April 29, 2016. A helicopter carrying around 13 people from an offshore oil field crashed Friday near the western Norwegian city of Bergen, police said. Many are feared dead. (Rune Nielsen / NTB scanpix via AP) NORWAY OUT
The Associated Press
A search and rescue vessel patrols off the island of Turoey, near Bergen, Norway, as emergency workers attend on the shoreline after a helicopter crashed believed to have 13 people aboard, Friday April 29, 2016. A helicopter carrying around 13 people from an offshore oil field crashed Friday near the western Norwegian city of Bergen, police said. Many are feared dead. (Marit Hommedal / NTB scanpix via AP) NORWAY OUT
The Associated Press