...Avolon has a fleet of 481 aircraft, mostly modern, widely- used models, positioning it as the world's third-largest provider of aircraft operating leases. The average fleet age is a relatively young 4.9 years, with an average lease term of seven years and a well-diversified customer base, both in line with those of other investment-grade aircraft lessors. It also has an order book for 393 aircraft, primarily widely used narrowbodies such as the A320 and B737. These aircraft are easier to place with new airlines if existing customers default and turn back planes....