What's wrong with this line of code?

[Gregme]

const currentUseTable:FeatureLayer = new FeatureLayer("http://xxx/ArcGIS/rest/services/yyy/zzz/FeatureServer/2");
currentUseTable.addEventListener(FeatureLayerEvent.EDITS_COMPLETE, currentUseTableEditsComplete);
currentUseTable.applyEdits(null, null, [ {OBJECTID:403} ]); 

See anything wrong with this? I can add and edit but nothing happens when I delete. There is a record in the table that I am tring to delete from with the ObjectID of 403. When I call the code, nothing happens. No error, the currentUseTableEditsComplete function is never called and the record is not deleted.

I've been staring at this for hours and just can't figure out anything else to try. Please help!

[Gregme]

I changed the code so that I have an error handler. Here's the error message:
[RPC Fault faultString="Unable to complete  operation." faultCode="400" faultDetail="Invalid parameters"]

[DasaPaddock]

You should wait for the FeatureLayer to load before calling applyEdits() and you should pass it Graphic instances.

You find this easier to use instead:
http://help.arcgis.com/en/webapi/flex/apiref/com/esri/ags/tasks/FeatureLayerTask.html#applyEdits()

[HaroldBostic]

I can confirm that there is better success with the FeatureLayerTask.  In the code below, the commented out section did work, where as the other code did

var feat:Graphic = new Graphic(null,null,attr);
    var tblAddersTask:FeatureLayerTask = new FeatureLayerTask(tblAdders.url);
    tblAddersTask.applyEdits(null,null,[feat],"ObjectID",new AsyncResponder(onUpdateComplete,onUpdateFault,token));
    //tblAdders.applyEdits(null,null,[779],new AsyncResponder(onUpdateComplete,onUpdateFault,token));

[SergioSamarelli]

Anyone have sent a serious answer on the issue? I have the same problem and I can't understand how to solve it. Please don't propose work around or redirect to documentation (without samples)

Maurizio