but the diversion did not take place
Yes I think we've got that clear
But as to what was on the relevant FICO page at the time I have to say it was as I posted. Now with hindsight we can see that the manual inputs (by ops) didn't keep up with events - leading to all the various systems that are driven by that (ba.com, ceefax etc) giving erroneous info.
Having been in that situation before, I have learnt to "modify" our fuel policy - inbound to LHR - to allow for wider safety margins.