NTSB Blames Contractor, US For Fatal Chopper Crash
The NTSB, which released the results of its investigation on Tuesday, said that Carson Helicopters Inc. intentionally altered weight documents and performance charts and used unapproved performance calculations. Members of the flight crew were also partly to blame, the NTSB said.
The NTSB singled out the U.S. Forest Service and the Federal...
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