Path deletion error

(moved from general)

So I have an exciting issue with paths... basically I am spawning some helicopter objects- they move from the right side of the screen to the left, as helicopters are wont do. So to make their movement a bit more interesting I randomly attach them to paths, like so:

%this.flightplanC = new t2dPath()
	{
		scenegraph=$scene;
	};
	%this.flightplanC.addNode("600 -350");	
	%this.flightplanC.addNode("0 -250");	
	%this.flightplanC.addNode("-1000 -350");
	%this.flightplanC.setPathType("LINEAR");

and then later...

%this.flightplanC.attachObject(%chopper,100);
	%this.flightplanC.setOrient(%chopper,false);

(which flightplan they are being attached to is randomly decided earlier)

I will be the first to admit that I may not be doing this right-- especially given that once I do this, Torque inevitably crashes out with a fun mac system error (EXC_BAD_ACCESS) (note that console.log itself doesn't give an error).

Now, what triggers the crash is the deletion of the choppers, but those are just boring safeDeletes(). And when I tried just spawning choppers and giving them a MoveTo instead of a path to follow, they happily go on forever, no problems. So I feel it might have something to do with deleting objects that are on paths...

Ideas?