Senators want US Army to detail failure to use key safety system in helicopter flights
Original source: https://www.investing.com/news/stock-market-news/ntsb-chair-to-testify-at-march-27-hearing-on-fatal-air-collision-3921898
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Original source: https://www.investing.com/news/stock-market-news/ntsb-chair-to-testify-at-march-27-hearing-on-fatal-air-collision-3921898
Read More »