7 4 7 ▁Super t ank er ▁was ▁developed ▁by ▁Global ▁Super t ank er ▁Services ▁which ▁acquired ▁most ▁of ▁Ever green ' s ▁assets . ▁The ▁Global ▁Super t ank er ▁( N 7 4 4 ST , ▁tank er / tail ▁number ▁ 9 4 4 ) ▁is ▁a ▁Bo eing ▁ 7 4 7 - 4 0 0 ▁dub bed ▁the ▁Spirit ▁of ▁John ▁Mu ir . ▁It ▁was ▁cert ified ▁for ▁fire f ight ing ▁fl ights ▁by ▁the ▁Federal ▁A viation ▁Administration ▁in ▁September ▁ 2 0 1 6 ▁and ▁fought ▁fires ▁in ▁Chile ▁and ▁Israel ▁before ▁being ▁contract ed ▁by ▁U . S . ▁officials ▁to ▁fight ▁California ▁wild f ires ▁in ▁ 2 0 1 7 . ▁It ▁also ▁took ▁part ▁in ▁fire f ight ing ▁in ▁Boliv ia ▁in ▁August ▁ 2 0 1 9 . ▁ ▁Development ▁ ▁Development ▁started ▁after ▁the ▁ 2 0 0 2 ▁fire ▁season , ▁which ▁saw ▁the ▁fatal ▁crashes ▁of ▁two ▁air ▁tank ers ▁in ▁the ▁United ▁States . ▁The ▁acc idents , ▁involving ▁a ▁Lock he ed ▁C - 1 3 0 ▁Her cules ▁and ▁a ▁Cons olid ated ▁P B 4 Y - 2 ▁Private er , ▁prompt ed ▁the ▁US ▁Department ▁of ▁Inter ior ▁to ▁issue ▁an ▁official ▁request ▁for ▁information ▁on ▁next - gener ation ▁a irt ank ers . ▁ ▁Ever green ▁proposed ▁to ▁convert ▁up ▁to ▁four ▁of ▁its ▁Bo eing ▁ 7 4 7 - 2 0 0 ▁Fre igh ters