Originally Posted by
ManaAdaSystem
There had to be a major difference between actual QNH and STD to get that 500 ft difference. What was the QNH at the time?
A QNH of around 1030 would account for that difference. I haven't seen a METAR, so I don't know what the actual value was.
In my experience, FR24 gives poor altitude information close to airports.
That hasn't been mine, other than the fact that you obviously need to adjust for QNH. YMMV.
And, regardless of size of the offset, by the time the aircraft was over the threshold it was clearly around 1200' higher than at the lowest point of its approach, so neither the video or the data would indicate any runway contact.