The chief executive of Aer Lingus has been picked to head the successor company to Malaysian Airline System (MAS), which is being taken private after being hit by two separate air disasters. 

Khazanah Nasional, Malaysia's sovereign wealth fund and MAS's parent company, said it had appointed Christoph Mueller as its chief executive-designate. 

It also made other leadership appointments for the new company called Malaysia Airlines. 

Last month, MAS posted its worst quarterly loss since late 2011, as passenger numbers and average fare yields fell sharply after two successive disasters - the loss of flight MH370 en route to China and then the destruction of flight MH17 over Ukraine. 

The airline had previously had a solid safety record.

The disasters compounded huge financial losses in recent years, which analysts have blamed on poor management, unwise business decisions, government meddling and a failure to meet the challenge of low-cost carriers like Malaysia's AirAsia.

The carrier's poor business standing has left it ill-equipped to face the impact of the air disasters, which have severely dented passenger bookings.

Trading in the airline's shares will be suspended from December 15, the first step towards the struggling airline's delisting from the stock exchange as part of a 6 billion-ringgit ($1.8 billion) government-led restructuring. 

Mueller, CEO of Aer Lingus since 2009, has been credited with turning around the airline despite a weak European market. A German citizen, Mueller previously occupied top positions at Lufthansa and the former Belgian carrier Sabena.

"Discussions are ongoing for Mueller to assume the post of MAS CEO at a date prior to May 1, 2015, but no earlier than March 1, 2015," Khazanah said in the statement.

"Mr Mueller has a strong record of transformation and turnarounds in the aviation industry," Khazanah added.

"Among his key accomplishments, Mr Mueller has demonstrated particular strength in strategic and financial planning, as well as structural repositioning of companies in difficulties," it stated.

Khazanah has been criticised in the past for picking CEOs who lacked aviation industry experience. Current boss Ahmad Jauhari Yahya came from an energy background.

Mr Mueller's contract as CEO of Aer Lingus ends on May 1, 2015.