Switzerland's prosecution service is including former Crossair chief executive André Dosé, two other airline managers and the former Swiss Federal Office of Civil Aviation (FOCA) chief in its criminal investigation into responsibility for the 2001 crash of a Crossair BAE Systems Avro RJ100.

The prosecution service says that it has decided to extend its probe to include three former Crossair managers on duty at the time - Dosé, the operations officer and the Avro RJ flight instructor. Former FOCA director Andre Auer is also under investigation.

Last month the prosecutor's office opened a police investigation to determine who was responsible for the crash, which killed 24 people. Dosé resigned from his position as chief executive of Swiss International Air Lines last week. The official report into the RJ100 crash detailed a series of errors by the crew and also accused the airline of negligence (Flight International, 10-16 February).

MARIA WAGLAND / LONDON

Source: Flight International