The doctor of Andreas Lubitz, the pilot who crashed a crowded passenger jet into the French Alps last year, faces a lawsuit for failing to alert authorities about the risk Lubitz posed, a German prosecutor has confirmed.
The plaintiff lost his daughter and grandson in the March 24, 2015, crash.
He accuses the doctor of failing to alert Lubitz's airline Germanwings, its parent company, Lufthansa or aviation authorities about Lubitz's mental problems.
Doctors had been aware of Lubitz's suicidal tendencies and depression ahead of the crash, but were prevented from sharing it with his employer and authorities because of confidentiality laws.
But the plaintiff argues that, in such cases, confidentiality no longer applies.
The 61-year-old from Dusseldorf has already filed lawsuits against Lufthansa's medical service and Germany's aviation authority LBA. A similar lawsuit has been filed by families of victims against the US flight school where Lubitz trained.
Lubitz, 27, crashed the Airbus A320 as it flew from Barcelona to Dusseldorf, killing all 150 on board.