56. Any person subject to this Act who,-(a) voluntarily or negligently damages, destroys or loses any service aircraft or aircraft material; or(b) is guilty of any act or omission likely to cause such damage, destruction or loss; or(c) without due authority disposes of any service aircraft or aircraft material; or(d) is guilty of any act or omission in flying or in the use of any aircraft, or in relation to any aircraft, or aircraft material which causes or is likely to cause loss of life or bodily injury to any person; or(e) during a state of war, voluntarily and without proper occasion or negligently causes sequestration, by or under the authority of a neutral State, or the destruction in a neutral State, of any service aircraft,shall, on conviction by court martial, be punished, if he has acted voluntarily, with rigorous imprisonment for a term which may extend to fourteen years or with such less punishment as is in this Act mentioned; and if he has not acted voluntarily, with rigorous imprisonment for a term which may extend to five years or with such less punishment as is in this Act mentioned. Explanation.- In this section, “aircraft” includes aero-planes, baloons, kite baloons, airships, gliders or other machines for flying, and “aircraft material” includes any engines, fittings, guns, gear, instruments or apparatus for use in connection with aircraft, and components and accessories of aircraft, and petrol or any other substance used for providing motive power for aircraft, and lubricating oil.