ChristiaanJ
I confess to being more than a little confused by your thanks. PM me if you want.
I had discussed the possibility of fuel 'waxing' with a BA mate of mine a day after the event and we both agreed that such an event could cause the 'irregularities' that were seen on that day - we discounted 'fuel icing' for the obvious reasons.
All of us airline types were bound to start speculating as to causes and so BT made a fortune as we chinwagged the issue. I came up with the idea of waxing as a cause that would affect both engines - but I then shot myself down because I felt that the effects of 'waxing' would have been realised much earlier.
Meanwhile I await patiently for the AAIB report.
Regards
Exeng