Yes, EK tanker fuel. I don't think it is done on UK sectors, though, at current prices. But if they were likely carrying a fair bit extra for weather, which would seem to be the case if they could do three apps before diversion, that extra fuel could conceivably have put them over landing weight. That is a real double edged sword with contaminated (rather than wet) runways; carrying the extra to allow for runway clearance or holding in a big queue at an alternate or needing a further alternate can put you overweight, while going min fuel could get you in, but holding to burn of fuel could see a runway window close on you as the contamination builds up again but you no longer have the fuel for the further alternate. It can be a juggling act in some cases.
Last edited by Aluminium shuffler; 28th Mar 2016 at 18:49.