Fire extinguisher had been developed by DuPont and the US Army in 1954. Both 1211 and 1301 work by inhibiting the chain reaction of the fire, and in the case of Halon 1211, cooling class A fuels as well. Halon is still in use today but is falling out of favor for many uses due to its environmental impact. Europe and Australia have severely restricted its use, since the Montreal Protocol of 1987. Less severe restrictions have been implemented in the United States, the Middle East, and Asia. Internationally there are several accepted classification methods for hand-held fire extinguisher. Each classification is
LAPA Flight 3142 which grew from rupture of the wings which spilled jet fuel of type JP-1. Also, as a result of a gas regulator plant being hit, a gas leak developed. The fire moved to the back of the aircraft, covering it entirely." After impact against the embankment, but before catching fire, a flight attendant attempted to hold and operate a fire extinguisher, but she didn't succeed because it was already very hot. She also unsuccessfully tried to open the rear right door that was jammed —probably due to deformation. Finally, another flight attendant succeeded in opening the rear left door allowing