[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"legacy-detail-air-force-431X0":3},{"code":4,"branch":5,"codeSystem":6,"events":7},"431X0","air_force","AFSC",[8],{"title":9,"status":10,"effectiveFrom":11,"effectiveTo":12,"successors":13,"citations":16,"notes":23},"Helicopter Mechanic, Helicopter Flight Engineer aircrew prefix","converted",null,"1979-10-31",[14],{"code":15,"liveCode":11,"name":11},"113X0B",[17],{"title":18,"url":19,"accessedAt":20,"sourceDate":21,"locator":22},"Flight Engineer, AFSC 113X0B/C","https://archive.org/details/DTIC_ADA203058","2026-07-30","1988-11-01","Internet Archive full-text OCR lines 388-423; adjudicated excerpt in audit","Explicit dated conversion."]