removeChild not doing anything

Hi All

I'm using an onEnterFrame handler to load an external swf file which works fine at frame 190...

var fl_Loader:Loader;
addEventListener(Event.ENTER_FRAME, fl_EnterFrameHandler);

function fl_EnterFrameHandler(event:Event):void
{
        fl_Loader = new Loader();
        fl_Loader.load(new URLRequest("authorisedDealerSlide.swf"));
        addChild(fl_Loader);

}

However, I can't seem to get the swf file to unload at frame 215...

  addEventListener(Event.ENTER_FRAME, fl_EnterFrameHandler2);

         function fl_EnterFrameHandler2(event:Event):void
{
         removeChild(fl_Loader);

}

Is there a scoping issue here or something else? I've tried several different ways to get rid of it but no joy.

It's been a long time since I used AS!

Thanks for any help