More than 450 people died in U.S. general-aviation accidents last year, amounting to one fatal accident for every 100, 000 flight hours.
Between 1995 and 2008, ground factors were responsible for one-third of major aviation accidents, according to data released by the U.S. National Transportation Safety Board.
Aviation accidents involving small aircraft are not uncommon in mountainous Nepal.
What is missing is a process much like that of the National Transportation Safety Board, that automatically conducts investigations and issues reports on civil aviation accidents.
No one was seriously injured in any of the events, and the National Transportation Safety Board, an independent federal agency charged with investigating civil aviation accidents in the US, and the Federal Aviation Administration, the national aviation authority of the US, have ordered investigations into the incidents.
Sunday's NTSB announcement "doesn't bode as well for a quick fix as Boeing would have liked, " said John Goglia, a former member of the safety board, which investigates aviation and other transportation accidents.
CNN: Quick fix for Dreamliner looks less likely, experts say
The year is also closing with another notable record: the longest period in modern aviation without a single fatal airliner accident, according to Harro Ranter, president of the Aviation Safety Network, a nonprofit organization that tracks accidents and incidents.
The coming scramble into the air by civilian operators makes aviation authorities nervous about mid-air collisions and other accidents.
ECONOMIST: A small Welsh airport has become an unlikely tech cluster
" Adds Sydney-based Peter Harbison, who heads the regional airline consultancy Center for Asia-Pacific Aviation: "Partly because we all quickly forget accidents and partly because people need to fly, the impact on the bottom line is fairly limited, unless the airline has a history of problems.
They are mindful that revolutionary aviation breakthroughs like the Osprey have rarely been accomplished by the armed forces without accidents and loss of life and that the sacrifice entailed thus far will be rewarded by far fewer losses in future combat and peacetime operations.
The global accident rate for commercial air service fluctuated between 3.9 and 4.6 accidents per million departures between 2005 and 2010, according to International Civil Aviation Organization.
We relied on data from the Aviation Safety Network, a private, independent initiative founded in 1996 to keep a public database of accidents.
应用推荐