One suspects as they Viking flight departed around 0130am the crews didnt have enough duty hours to undertake a tech stop for fuel.
On a similar note I used to work for a Company called Trans European Airways UK and they were a new start up with 737-300 aircraft and commenced flying Newcastle to Tenerife (or maybe Heraklion). The -300's were delayed so we had no choice but to use our 737-200's. The first flight stopped at EMA where I rushed out to the aircraft to speak to JD the Captain. He was stopping for fuel so he could continue EMA-TFS - There was also no way he was going to tell the punters he'd left the bags behind in Newcastle for fear of a riot.
