At first the pilots don't get any indications in the cockpit and plan to go on to Kuala Lumpur. Then we decide to call Arlanda duty offocer to make sure that they have noticed the pieces from the engine on the runway. Shortly after that the pilots requests fueldump and return to ARN safely
"Ah, Malasian 235 heavy, we've got reports of fragments on the runway. You might want to check your engine indications for, ah, a failure"
"Negative, we'll continue on. . .oh, whaddya know, we lost number one"