Is there no one else on this forum who is willing to agree or disagree with Chinook240's statement that the STANS was not "connected" to the horizontal situation indicators?
Is it to much to ask that we clearly determine just what the navigation system and the flight instruments could do?
It could hardly be "OPSEC" (or whatever you want to call sensitive) as other a/c of the time (mil & civil) had the facility.
There may have been a reason why Doppler/GPS track data was not used to drive the CDIs of the HSIs at the time in HC2s - if so, surely this anomaly is of interest to this case.