"J Haggerty" wrote in message
news:ezAee.4545$Ri4.99@okepread07...

Yes, he would have been well below the theoretical glideslope elevation a
mile out (GS elev at that point is approx 812 MSL), but if for some reason
(GS malfunction, undetected false glideslope, equipment problem) he
thought he was on the glideslope, then he probably would not have
initiated go-around until the 639 MSL DA, which would have been too late
based on the elevation of the terrain.

Except that he'd received and acknowledged a low-altitude alert. If his GS
needle *didn't* show he was very low, then he knew something was wrong
either with the GS or with the controller's radar. That unequivocally calls
for an immediate climb and missed approach.

--Gary