Experts ask why Black Hawk helicopter may have been flying above allowed altitude before crash

https://www.cbsnews.com/news/e....xperts-ask-why-black

Experts ask why Black Hawk helicopter may have been flying above allowed altitude before crash - CBS News
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Experts ask why Black Hawk helicopter may have been flying above allowed altitude before crash - CBS News

This data point is one of several key mysteries investigators are exploring as they seek to explain what caused the nations worst air disaster in more than a decade, aviation experts said.