Fire extinguisher older models also achieved class B and C fire-fighting capability in the past, current models are rated A:K (Amerex, Ansul, Buckeye and Strike First) or K only (Badger/Kidde). Clean agents extinguish fire by displacing oxygen (CO or inert gases), removing heat from the combustion zone (Halotron-1, FE-36, Novec 1230) or inhibiting the chemical chain reaction (Halons). They are referred to as clean agents because they do not leave any residue after discharge which is ideal for protecting sensitive electronics, aircraft, armored vehicles and archival storage, museums, and valuable documents. Halon was completely banned in Europe and Australia except for critical
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