Anyone knows what type of approach they flew?
Indeed. The Notams mention ILS & DME & RNAV all unavailable. What's left. The METAR shows bad vis in SN and low cloud.
Apparently it was their 2nd app...
If true this invites many questions about the type of approach, an alleged GA and what was the reason for an 2nd attempt. Any kind of approach which puts you on profile for the normal threshold, but then you have to adjust and extend the touchdown due to displaced threshold (here 600m) is hugely demanding and difficult. In those weather conditions extremely challenging. One wonders if the approach lights were still in use. TDZ & CL lights u/s. So what approach did they use, what DA did they use and what was the required vis? The METAR says 800m SN and the threshold was displaced 860m with no CL lights, but I expect some green threshold lights, but would they have been visible at DA?
Lots of questions and not yet any answers, but with, thankfully, everyone surviving those answers should be easy for an enquiry to discover quite quickly.