I see from the radar track that is now available on Heathrow WebTrak at
WebTrak: Heathrow that on the aircraft's landing approach, there were a number of unusual deviations from the extended runway alignment. Between Battersea and Hounslow, it followed a sort of sinusoidal track, deviating to the north and south by up to about 300 metres, with a heading at one point that appears to be at least 25 degrees off course.
Would this indicate a handling problem, or would there be a reason for deliberately following such a course? Altitudes and speeds appear to have been normal.
For some reason, WebTrak have decided to censor yesterday's situation by removing all information of flight numbers, destinations, aircraft types. BA762 can be identified as the one that departs LHR at 08:17. Aircraft symbols are coloured according to their actual final destination, so BA762 is the departure that is coloured red as an arriving flight! There are also about 20 aircraft in the arrival stacks at that time which are coloured blue, because they later had to divert elsewhere.