This was not, however, the first planned crash landing of a large jet. NASA conducted a similar experiment in 1984 with a Boeing 720, though with very different results. Remotely controlled, it departed from Edwards AFB and landed on a "specially prepared runway," according the NASA Dryden Flight Research Center. The runway had been equipped with "cutters" that sliced through the wings, releasing and igniting a massive fireball of fuel. The airplane was damaged by fire, but it remained intact after the impact possibly because the touchdown was controlled by the remote operator, unlike the experiment in Mexico where the airplane was uncontrolled during the crash landing.