Concerns about the safety of flying in the vicinity of a high-rise building in London were raised four years before a helicopter crashed into a crane at the site, an accident report has said.
The Civil Aviation Authority (was questioned over the effect of the then-proposed St George Wharf development on helicopter flights in 2009 by the operator of Battersea Heliport in south London.
But the Air Accidents Investigation Branch said in its report into the crash that the raising of the concerns "does not appear to have led to further discussion or action".
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