What is the first step to take when preparing an open lifeboat for launch?

The first step to take when preparing an open lifeboat for launch is to put the cap on the drain. This is crucial because it prevents water from entering the boat, which can compromise its buoyancy and stability. Ensuring that the lifeboat is watertight is fundamental for safety before any personnel board or the boat is launched.

If the drain is left uncapped, any water that accumulates in the lifeboat could make it heavy or even unsafe, particularly in choppy waters. This step is a proactive measure to maintain the integrity and readiness of the lifeboat for those who will depend on it during an emergency.