Industry players reject competition argument, claim local companies have been sidelined in their bid to lease hangars.

Airlines should be obliged to make refunds automatically without passengers having to file a claim.

The man has been charged with making a false statement about a threat to damage a plane and not complying with cabin crew's safety instructions.

They say the passengers and the crew were evacuated from the plane once it was deemed safe.

Investigators previously drew no conclusion about what happened aboard the flight, but did not rule out the possibility that the aircraft had been deliberately taken off course.

Russia says it cannot accept the results of the investigation since it took no part in the process.

Russia has denied any involvement and dismissed last year's court verdict as 'scandalous' and politically motivated.

But there is no realistic prospect of prosecuting him or others, investigators say.

Investigators could identify either the crew that manned the missile system, or higher-up Russian military or political officials who approved its transfer in and out of Ukraine.

The findings are expected to deal with their research into who actually fired the missile that shot down the plane over eastern Ukraine in 2014, and who originally supplied the Russian-made projectile.

Oleg Pulatov was found not guilty by a Dutch court on Nov 17 while Russians Igor Girkin and Sergei Dubinsky and Ukrainian Leonid Kharchenko were convicted and sentenced to life in absentia.

Moscow denies any involvement or responsibility for MH17's downing and in 2014 it also denied any presence in Ukraine.