While using another company 's launch vehicle , Orbital will concentrate on replacing the 1970s-era Russian engines by 2016 . Evidence indicates an engine failed about 15 seconds after ignition , Orbital Sciences 's CEO says . The turbo pump in one of the engines likely failed , he says . Orbital still plans to stay on track with its $ 1.9 billion Orbital contract , he says .
Evidence indicates an engine failed about 15 seconds after ignition , Orbital Sciences 's CEO says . The turbo pump in one of the engines likely failed , he says . Orbital still plans to stay on track with its $ 1.9 billion Orbital contract , he says .