I can't believe that any country would seek a manslaughter indictment over a pretty obvious "human error" crash. Unless the persons involved deliberately tried to crash the aircraft. But this has certainly happened before. Remember the crash of Air France flight 296?
http://www.youtube.com/watch?v=-kHa3WNerjU
The captain, first officer as well as 2 Air France officials and the President of the airport flying club were all charged with involuntary manslaughter. They all were in fact convicted. This crash was 100% attributed to human error.
May all 113 souls Rest in peace.
S