(Morning News) The American Army spokesman said that after several CH-47 CH-47 Knuk transport helicopters were launched, the US Army had stopped all about 400 helicopters of the same model.

Bloomberg reported that the Army spokesman Smith said in a statement on Tuesday (August 30) in the evening that "the Army has determined the root cause of the fuel leakage. The troops are implementing correction measures to solve this independence problem. "

She added that no one died or injured, but because of cautious, Cubuk would be banned until the correction measures were completed.The statement did not say how long Knuk might stop using it.

The iconic Knuk dual engine helicopter is the main air transportation for the US Army in the past 60 years.The helicopter was manufactured by Boeing, and its engine was manufactured by Honeywell International.

According to Boeing's webpage, Chenk's main task is "transport troops, artillery, equipment and fuel".There are currently 22 countries, including Singapore's use of the Knuk helicopter.