Handling Troubles & Failure Of IGS During Discharging / COW Operations
If the Inert Gas System(IGS) is malfunctioning during operations, the oil transfer operations must be suspended immediately, and not resume until the IGS is in good working condition (or) an alternative Inert Gas supply is provided.
Such emergency action in case of Failure of Inert Gas System, is required in order to maintain a positive pressure in the cargo or slop tanks. The inert gas main isolating valve shall be shut. The terminal, must then be informed, as soon as possible.