Originally Posted by
A Squared
... Alternately, if they were looking at an FMS displayed distance to the threshold, and thinking it was DME, 1.3 would be interpreted as being over the threshold, so the scenario would necessarily include a crew deciding to descend at the MAP instead of executing the missed approach, which is a bit implausible.
Would it be plausible in the above situation, that, thinking they were nearly at the MAP over the TH they might descend to the bottom of the clouds to look for the runway before doing the missed approach? Maybe this would explain the sink rate warning and the runway in sight call. If it is obviously implausible, then it can be ruled out.