Dvortsevoy worked as an aviation engineer before studying film in Moscow in the early 1990s.
He moved there permanently following the conclusion of the war and became an aviation engineer.
Later that year Nyabongo, an aviation engineer, was killed in a plane crash at age 32 years.
Later, he made a career as an aviation engineer.
Another is an aviation structural engineer who checks plane fuselages.
At 11, his father, an aviation engineer, moved the family to New Orleans.
But aviation engineers say that whatever caused the plane to crash was itself rare: 737's have a superior safety record.
He is a former aviation engineer and captain in the German army.
The movie revolves around the life of a troubled young aviation engineer (Helmi).
As is usually the case, though, aviation engineers at airlines do not want to be quoted by name in speaking against a proposed safety measure.