Can´t change value when unchecked a radioButton

I have this input which is a radio button(example2) and I have others radio buttons with different purposes.

       <input name="example2" id="sent" type="radio" value="3">
       <input name="example2a" id="sent" type="radio" value=" ORDER BY date_hour DESC   ">

I have this code for check and uncheck my radio buttons.

<script type="text/javascript">
(function( $ ){

$.fn.uncheckableRadio = function() {

  return this.each(function() {
   $(this).mousedown(function() {
      $(this).data('wasChecked', this.checked);
  });
  $(this).click(function() {
      if ($(this).data('wasChecked'))
          this.checked = false;
      });
  });
};
})( jQuery );
$('input[type=radio]').uncheckableRadio();

</script>

And now the code for checking my radio button or uncheck:

$('#sent').change(function(){
    if( $('#sent').prop("checked")){
      status=3;
    } else {
      status=2;
}

I can change the status when I check the radio button but i can´t change the status when I uncheck the radio button.

What I'm looking for is if the radio button is checked i want status = 3 and if radio button is unchecked status = 2.

Thank you for you help.