
A 2017 accident involving an RQ-4B Global Hawk that crashed in California was caused by issues with one of its navigational data devices or navigators, according to an Air Force report released Wednesday.The Air Combat Command Accident Investigation Board report states that the unmanned aerial vehicle, part of the 12th Reconnaissance Squadron from the 9th Reconnaissance Wing at Beale Air Force Base, California, was conducting a ferry flight on June 21, 2017, from Edwards Air Force Base, California, back to…