Duncan Munro, from Bishop Auckland and George Allison, who was originally from the North East but living in Hampshire, were two of four victims of a helicopter crash involving a Super Puma off the coast of Shetland.
The British Airlines Pilots Association (Balpa) has released a statement saying that it has confidence in the Super Puma, days after one of the helicopters plunged into the North Sea.
Four people died in the crash near to Shetland.
In a statement, the association said that it would be a mistake to draw early conclusions about the cause of the crash.
"In the meantime Balpa wishes to confirm that the confidence of its members in the Super Puma family of aircraft remains unchanged," the group stated.
"Indeed the aircraft continues to operate commercial air transport flights throughout the rest of the world including the Norwegian sector of the North Sea.
"We should not rush to judge an aircraft which has three very different variants and has successfully transported millions of passengers worldwide in safety over 30 years of operation.
"However, once the recommendations of the accident report into last Friday's accident have been published, Balpa believes there is a need to take a step back and, as well as reviewing each of the five individual accident investigations, to consider as a whole what can be done to improve the safety of both the offshore workforce and Balpa members who share the same risks, but on a daily basis.
"Such an investigation might usefully take a comparative view on the approaches of our Norwegian colleagues who do things in the same geographic operating area yet with an apparently better safety record."
Balpa extended its sympathies to the families of those who died and to survivors.
Investigators are searching for the black box data recorder of a helicopter that plunged into the North Sea. Duncan Monro from County Durham was killed along with three other oil workers in the crash near Shetland.
Salvage experts have been using sonar equipment to try to trace the device, which was located in the tail of the aircraft. They hope information on the flight recorder will help establish what caused the CHC-operated Super Puma AS332 L2 to crash.
"There has been a huge amount of work by everyone involved in safety in the offshore oil-and-gas industry to mitigate the risks of working in and travelling to offshore installations,
"My message and commitment to offshore workers and everyone with an interest in our industry is that we will continue to do everything humanly possible to ensure we get them to work and get home safely every time."
– Duncan Trapp, Vice President for Safety and Quality at CHC Helicopter
A man from County Durham has been killed in the helicopter crash off the coast of Shetland. Duncan Munro from Bishop Auckland died in the aircraft which had been transporting oil workers. 18 people were on board.