CBS News Coverage
It said the Legacy flew at 37,000 feet to the capital Brasilia, but then ignored an order to descend to 36,000 feet to continue its flight to the Amazon city of Manaus. The Gol jetliner was flying at 37,000 feet from Manaus to Brasilia en route to Rio de Janeiro.
U.S. journalist Joe Sharkey, who was on the smaller plane, wrote in The New York Times that he visited the pilots shortly before the crash. He said they told him "the plane was flying beautifully" and he noted a display of the altitude read 37,000 feet............
Link to NBC video of Joe Sharkey talking about the MAC on the Today Show
here