Truk is the old name for Chuuk these days, back in WW2 they were known as the Caroline Islands.
I dived these wrecks back in 2005 and it is truly am amazing place to dive. The Zero fighter plane(s) and various other aircraft parts are in the front hold of the freighter ‘Fujikawa Maru’ at about 25m. Some of the other wrecks in the lagoon also hold other aircraft parts like engines.
I took some piccies while diving and the attached is a rather poor image of the cockpit.
One day I’ll go back there again….ho hum.