Well, as I stated, we dont know how far they were out, but the one still images, shows the turbulence on the water from the ac going on for quite a while, as I stated, that is an unknown. The person taking the image also stated that she saw the aircraft flying very low, grabbed the camera and took the image, so it appears it was for a while, and the FR ADSB data concurs.
You, nor anyone else, has no idea of what transpired, and everyone is hypothesizing.
The EGPWS systems are different, and when WJ initially started with these, many procedures that had been in use, began setting off the alarms. The way the system forward looks, and understand the glidepath between the FAF and threshold, and the associated ROC. This has nothing to do with ILS. Many obstacles and terrain which were not previously an issue, became issues and had to be added to the database.
There were issues with procedures in Adelaide with QANTAS for the same reasons.
Do you really think that that distance from threshold, at about 50 feet from a surface, there would be no warnings, especially with a 60 second forward looking capability?
Do you really think the altitude calls were not annunciated by the system? minima that far out or 50 that far out?
EDIT: Just so you know, ATC systems in AUS use geometric, not baro altitude from the ADSB broadcasts.
Last edited by underfire; 31st Mar 2017 at 01:05.