Yeah, this one takes awhile. It's not any 'particular' ship (other than its a eitc marauder), I believe its still somewhat random, but doing it the 3rd time now on my 3rd pirate, and each time I gave up focusing on it, and did other quests, and those hierlooms finally got found as I pursued the other quests.
Oh.. of course, ya always got to take a shot at that Marauder you see when your still lookin, but I stopped making it the focus of my activities.
Zeppers Lvl40
http://pirates.teamofx.us