A colonel for the US Air Force who spent seven years flying the type of aircraft that crashed in Cley, north Norfolk, told the Eastern Daily Press that the HH-60G Pave Hawk may hold the US military's "best safety record".
The Pave Hawk may have the best safety record of any helicopter that the United States military has ever owned.
More top news
The former leader of Hong Kong Donald Tsang has been jailed for 20 months after being convicted of corruption over a luxury apartment.
Girls born in South Korea in 2030 are predicted to be the first to break the 90 barrier, according to researchers from Imperial College.
Hundreds of hotels in the UK have poor food hygiene ratings, some which need improvement urgently, but are withholding them from the public.