Make sure that everyone on board is wearing a life jacket.

Check that everyone on board is up on the deck.

If necessary, make an emergency call or use a distress signaling device.

Immediately after a capsize, check the bilge for leaks. Even if the bilge pump is not rated for leaks, you may try to empty the boat using it.

Stop the engines and lift them out of the water. 

Turn off all the main electrical switches.

If you can detach the boat after a rock slide, check the condition of the engine.

Inspect the boat for leaks.

To avoid further damage to the engine, do not drive the boat if, for example, you notice an oil leak or the engine blade is damaged.

If the leak is small, the boat is detached and at least one of the engines is functioning, drive to the nearest shore to prevent the boat from sinking.

If a liferaft is available and required, prepare it for use.

If you detect a leak, close all doors and hatches. Open doors and hatches may cause the boat to drown more quickly.

Do not go inside of the boat if it has a leak.  

Call for towing assistance from local authorities or other agencies. 

A professional should inspect the boat after grounding. Even if there is no visible leak, the hull may be damaged and in need of repair.