The reselling of pre-owned jets is big business right now, with depreciation values reaching as much as 30% on year of use, particularly in Brazil, where the private aviation market surged by 76% between 2008 and 2010 (according to the National Civil Aviation Agency (ANAC), the Brazilian civil aviation authority), totalling 652 private jets and helicopters legally registered within the agency.

FORBES: Embraer Jet With A Tainted History Offers Steep Discount

"The defence minister has ordered a shake down inspection for all the private airlines, " Pervez George, head of Pakistan's Civil Aviation Authority, told the AFP news agency.

BBC: Pakistan begins new plane inspections after crash

Pakistan's Civil Aviation Authority has begun safety inspections of all airplanes operated by private airlines, days after a crash killed 127 people.

BBC: Pakistan begins new plane inspections after crash