premise: In July, a Chinook crashed near Kandahar. The Dutch defense ministry has ruled out the possibility that the aircraft was shot down by Taliban or al-Qaeda fighters.
  The air force suffered its heaviest loss in August last year when a mis-communication resulted in the crash of a 30-million- euro Apache combat helicopter north of Kabul.
  "It is never nice to lose so much equipment that is so crucial and scarce," an air force spokesperson was quoted as saying, adding that "luckily there have not been any wounded or dead so far."
  As the Dutch mission in Afghanistan continues its dangerous operations, the air force risks losing more of its remaining 11 Chinooks, the paper said.
   Why did the Dutch air force lose a Chinook?
hypothesis: a mis-communication