I had no Flight ID due to bad reception. Even xfw-spotter.blogspot.com reported this Mode-S Code when delivered November 21 2013.
I think you're right. We'll wait for an on the spot report.
Maybe just another example that the Mode-S Codes are not a 100%.
EW-378TG (Mode-S Code 51007B) , This fine looking AN-26B (MSN 13306) from Vulkan Air (as MTL701F) was over Holland around 18.30LT > 'Achterhoek' > 'Maasvlakte' > UK