This article is part of HuffPosts Reclaim campaign, an ongoing project spotlighting the worlds waste crisis and how we can begin to solve it.

Airplanes cant fly forever, so what happens when theyre too old to take to the skies?

Many of them make a final flight to a disassembly specialist like Air Salvage International to be painstakingly broken up for recycling or transport to a landfill.

Theyre fully airworthy when they arrive and sometimes look like theyre about to go on another trip with a load of holiday-makers on board, Mark Gregory, ASIs founder and CEO, told The Huffington Post. It can be quite sad.

ASI, located in central England, provides an end-of-life service for between 50 to 60 planes at its Cotswold Airport base each year taking apart everything from Cessna Citations and Learjets to Airbus A320s and Boeing 737s and 747s.

Almost all of an airplanes parts can be recycled somehow, Gregory said, especially the metal frame.

How much can be recycled depends on a planes design and age. In general, almost 95 percent of newer airplanes (particularly narrow-bodied ones) can be saved from the landfill, but the percentage is not as high for older planes.

The interior plastic side panels and baggage bins can be problematic especially in the wide-bodied Boeing 747s, because of their size. Were working with universities on getting a better method, Gregory said, adding, they havent really come up with a solution yet.

Its evolving, though, he continued. Theres lot of things we do now which we never used to. For example, all the windows now are Perspex, which can be fully recycled.

Aircraft manufacturers are addressing the recyclability of their new planes now more than ever, Gregory said.