1)At least the pilots managed to go around bottoming out at 200ft vertical after the ground proximity warning went off.
2)Sounds like VMC (visual meteorological conditions) at HKG (edited from PVG)
ILS glideslope reported to be “fluctuating” but aircraft cleared for ILS landing.
3) Rule of thumb of 300 ft vertical per 1nm from runway threshold suggests they should have been approx 800ft at 2.6nm
What would be the reason for not turning off the GS which then would result in VFR only approach?
What alternatives are there to the ILS glideslope?