A "faulty" flight instrument contributed to the crash of a Turkish plane last month in the Netherlands, an accident that killed nine people and injured more than 60 others, Dutch safety authorities said on Wednesday. On February 25, Turkish Airlines Flight 1951 from Istanbul to Amsterdam dropped from the sky on approach to the landing strip at Schiphol Airport, shattering into three pieces in a muddy field. Pieter van Vollenhoven, head of the Dutch Safety Board, said the instrument was one of the plane’s two altimeters, which measure altitude