Gums
Obviously anything is possible in aviation!
Please don’t confuse collision warning systems (ie TCAS) with GCAS. In an ideal world all FJs would have both, but systems that are properly optimised for FJ operations.
I know you know the difference but my earlier posts refer to DVs crusade to have all FJs fitted with a CWS. I think using this accident to bring up the subject may be a red herring.
Bear in mind I know no more about what transpired yesterday than anyone else.
BV