Alpha tween fade in and out AS3

[5TonsOfFlax]

Well, I hardly ever deal with Tweens, and never the built in, but I'd have thought this should work:

var myTween:Tween;

fadeIn();

function fadeIn():void{
  myTween = new Tween(text_mc, "alpha", Strong.easeIn, 0, 1, 3, true);
  myTween.addEventListener(TweenEvent.MOTION_FINISH, tweenFinishedHandler);
}

var timer:Timer;
function tweenFinishedHandler(event:TweenEvent):void{
  timer = new Timer(3000,1); //3 seconds, 1 time.
  timer.addEventListener(TimerEvent.COMPLETE, fadeBackOut);
  timer.start();
}

function fadeBackOut(e:Event):void{
  myTween = new Tween(text_mc, "alpha", Strong.easeIn, 1, 0, 2, true);
  timer = null;
}