What to Do in Man Overboard: A Comprehensive Guide
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Falling overboard from a boat or ship is a terrifying and potentially life-threatening event. Knowing exactly what to do in this emergency situation is crucial for both the person overboard and the crew. The primary objective is to recover the person safely and as quickly as possible. Here’s a step-by-step guide on what to do in a man overboard (MOB) situation:
Immediate Actions Upon Witnessing a Man Overboard
The initial seconds are critical. Here’s what to do the instant someone falls overboard:
- Shout “Man Overboard!” Loudly and Repeatedly: The first action is to alert everyone on board. Continue shouting “Man Overboard!” until it’s clear that every crew member is aware of the situation.
- Press the MOB Button on GPS/Chartplotter: Immediately mark the location where the person went overboard by pressing the MOB button on your GPS or chartplotter. This will create a waypoint, making it easier to return to the location.
- Assign a Spotter: Designate a crew member to keep their eyes on the person in the water and continuously point towards them. This provides a visual reference and makes recovery more efficient.
- Throw Flotation Device: Quickly throw a life ring, lifebuoy, or any other buoyant device towards the person in the water. Even if they’re a strong swimmer, this provides immediate support and helps them stay afloat. Ensure it’s within their reach.
- Reduce Speed and Avoid Further MOB Situations: Start reducing the vessel’s speed immediately. This is important to avoid running over the person in the water, and to make maneuvers safer. It can also help to prevent other crew members from falling overboard, especially in rough conditions.
Initiating the Recovery Procedure
With the immediate actions completed, focus now turns to the recovery:
- Send a DSC Distress Alert and Mayday: Use your VHF radio to send a Digital Selective Calling (DSC) distress alert, followed by a verbal Mayday call if the situation is dire. State your location, the nature of the emergency, and the number of people involved. This alerts other vessels and the Coast Guard to your situation and allows for potential assistance.
- Prepare Recovery Equipment: Gather necessary equipment for the recovery, such as a throwing line, a boat hook, or a ladder. Having this equipment ready will streamline the process.
- Choose a Recovery Method: Select the appropriate recovery method depending on your boat’s size, capabilities, and the sea conditions. Popular methods include the Williamson turn, the Anderson turn, or the figure-eight turn.
- Maneuver to Approach the Person: Carefully maneuver your boat back towards the person in the water, ensuring they remain in sight. Bring the boat upwind of the person and then approach them slowly to windward. Stop close enough to retrieve them.
- Bring the Person Onboard: Use your recovery equipment to pull the person onboard. This can be more difficult if they’re injured or incapacitated. If possible, use a ladder or a stern platform to assist them. Do not attempt to lift from an unstable boat position.
Post-Recovery Care
After the person is safely onboard, follow these steps:
- Assess Their Condition: Check for injuries, hypothermia, and shock. Provide first aid as needed.
- Reassure and Monitor: Reassure the person and keep them warm and comfortable. Monitor their condition closely.
- Contact Medical Professionals: If needed, contact the Coast Guard or other medical professionals for further assistance.
- Report the Incident: After addressing the immediate needs, report the incident to the appropriate maritime authorities. This will document the event and can help to improve safety measures in the future.
Man Overboard Frequently Asked Questions (FAQs)
1. What is the first thing to do if you see a man fall overboard?
The absolute first thing to do is to shout “Man Overboard!” loudly and repeatedly to alert the rest of the crew. Then, press the MOB button on your GPS.
2. What is the primary goal of a man overboard drill?
The primary goal of a man overboard drill is to ensure every crew member knows their role and can respond quickly and effectively in a real MOB situation, minimizing the time the person spends in the water and maximizing chances of a safe recovery.
3. Is a “Man Overboard” situation considered a Mayday emergency?
A man overboard situation is a grave and imminent danger and usually qualifies as a Mayday emergency. A Mayday call should be issued when there’s an immediate threat to life.
4. Why is it important to assign a spotter during a man overboard situation?
Assigning a spotter to continuously point at the person in the water is crucial to ensure you don’t lose visual contact, particularly in choppy conditions or when the person is wearing dark clothing.
5. What is a Williamson turn and why is it used?
The Williamson turn is a specific maneuver used to retrace the boat’s path back to where the person fell overboard. It’s a useful technique for less agile vessels as well as for visibility in poorer conditions.
6. How should you float if you’re in the water without a life jacket?
If you’re in the water without a PFD, try to float on your back. Recline flat on your back with your head above water. Arch your back, extend your arms to the side, and let your legs float up in an extended position. This helps conserve energy.
7. What does the ‘O’ flag mean on a vessel?
The ‘O’ flag, also known as the Oscar flag, indicates “Man overboard”. It is part of the International Code of Signals.
8. What is a PAN-PAN call and when is it used?
A PAN-PAN call is used to signal urgent information, such as a man overboard situation, if it is not considered a life-threatening situation. It is not to be used for an immediate life-threatening event, that would warrant a Mayday.
9. What are the odds of surviving a man overboard situation?
The odds of surviving a man overboard incident are generally low, with survival rates estimated between 17% to 25%. This emphasizes the critical importance of quick action and proper procedures.
10. Do cruise ships stop if someone falls overboard?
Yes, cruise ships immediately go into emergency mode if someone falls overboard. The ship will stop and the crew will begin search and rescue procedures in the area.
11. How long is the longest someone has survived in the sea after falling overboard?
The longest documented survival after falling overboard is 28.5 hours, as seen in the case of a person rescued in Australia.
12. How does the Coast Guard use PAN-PAN calls?
The Coast Guard uses PAN-PAN calls for urgent situations that are not life-threatening. For example, if your pleasure craft is broken down or is lost in fog.
13. Are sharks a concern during a man overboard situation?
While sharks can be present, the immediate priority is rescue and recovery, not shark avoidance. However, being aware of your surroundings and taking extra precautions is always wise. The priority is always getting the individual out of the water.
14. What are the main risks to a person in the water during a man overboard situation?
The main risks to a person in the water include drowning, hypothermia, shock, injury, and disorientation. These can be further aggravated by rough sea conditions and cold water temperatures.
15. What steps should a crew take to prevent man overboard situations?
Prevention is crucial. Steps to prevent MOB incidents include ensuring a safe environment on deck, such as using proper safety equipment, being aware of weather conditions, and reinforcing awareness by conducting regular MOB drills.
Being prepared for a man overboard situation with proper training and readily available equipment is essential for the safety of everyone on board. By understanding and practicing these procedures, you can significantly improve the chances of a successful rescue.