Airlines and aviation safety regulators around the world have long-established procedures for investigating crashes that put identifying and correcting safety risks ahead of assigning blame, Tony Tyler, the chief executive and director general of the International Air Transport Association, told reporters. Investigating with the intent to punish risks a loss of transparency and openness, he said.
"The circumstances of investigation of the Germanwings accident have been highly unusual, and something that began as an accident investigation morphed into highly public criminal investigation in which it seemed that every day new revelations were coming out," Tyler said.
The Paris prosecutor's office said last week it is looking into claims that information from the investigation was wrongly leaked to the media. The move came after a lawsuit was filed by France's leading pilots union, SNPL, over leaks about the crash investigation. The union is claiming a violation of French law about keeping information about investigations secret while they are in progress.
"I'm not going say that they anyone's done anything wrong, but the important principle to bear in mind is that accident investigations should be conducted on a non-punitive basis," Tyler said.