Different regions of the world, based on their specialties and abilities in materials, technology
and labor have become dominant on some parts of the market. For example, Europe has achieved
the most part of the engine overhaul segment [14, 15] and Asia, due to inexpensive labors that is
the most effective factor in Airframe Heavy segment, has achieved the most share of this market
[15, 16, 17]. The share of different parts of the world from the total value of the market in 2005
is presented in table 4. In addition, the rates of growth for each part up to 2015 are also shown.