My suspicion is that the chopper crew being on a training flight, NVG may have hampered visibility.
Transparency will presumably come with the AIB report, in six months or a year. There's no way they'll identify a cause right now, given the nighttime visibility and unclear ATC radio traffic.
Transparency will presumably come with the AIB report, in six months or a year. There's no way they'll identify a cause right now, given the nighttime visibility and unclear ATC radio traffic.