Clause 53

Every person subject to military law who is guilty of any act or neglect 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 shall be guilty of an offence and shall be liable on conviction by a subordinate military court to imprisonment for a term not exceeding four years or any less punishment authorised by this Act except that if the offender has not acted wilfully or with wilful neglect he shall not be liable to be imprisoned for a term exceeding two years.