If, when piloting a ship, any pilot by wilful breach of duty or by neglect of duty, or by reason of drunkenness—
(a)does any act tending to the immediate loss or destruction of or serious damage to the ship, or tending immediately to endanger the life or limb of any person on board the ship; or
(b)refuses or omits to do any lawful act proper and requisite to be done by him for preserving the ship from loss, destruction, or serious damage, or for preserving any person belonging to or on board the ship from danger to life or limb ;
that pilot shall be guilty of an offence and liable—
(i)on summary conviction, to imprisonment for a term not exceeding 3 months or a fine of an amount not exceeding the statutory maximum or both ;
(ii)on conviction on indictment, to imprisonment for a term not exceeding two years or a fine or both.