One man was present at the time in the captain's quarters. The man that was captured was beaten and threatened with a knife. The man was then released and all the pirates had fled the ship. Upon access of damages inflicted, the crew noticed spare engine parts were completely missing.
Perhaps the reason why these are being stolen so commonly is that they can be used to build faster pirate vessels. The rest of the crew was unscathed , some did not even notice the "silent" intrusion.
stolen boat engine