Question 365 Deck Safety

The correct answer is C) flashing the navigation lights on and off. The actions of an aircraft to convey the message to a vessel to change course and proceed towards a vessel in distress do not include flashing the navigation lights on and off. This is because the aircraft is expected to use visual signals such as heading towards the distress location (A), circling the vessel at least once (B), and crossing ahead and rocking the wings (D) to communicate the message. Flashing the navigation lights is not a recognized method for an aircraft to signal a vessel in this situation.