aterpster;
Thanks...figured something like that [-(
I've used the FR24 data to plot the first & second approach paths, much like someone has done earlier in this thread, but a 3deg descent path (red line, from the threshold, out) is drawn in, and 150' added to all FR altitudes as per an earlier discussion on altimetry & ADS-B.
The flight path may appear a bit lower than it was because the aircraft was slightly left of the inbound course after MAPON, and Google Earth takes such perspective into account, as many here would probably understand.
The steady altitude during the hold also indicated "2450". Adding 150' to that gives 2600ft which is the MHA for the hold and for all inbounds so it seems reasonable to do so.
150' appears too much at the lowest point of the first approach; I think the airplane was less than a hundred feet above the water at lowest point but the investigation will provide that information - that level of fine-tuning for a baro correction is too much for FR24.
Anyway, here are some trial results...nothing scientific about it at all:
Second approach:
