bubbers44 asked:
If #1 RA sensed -8 ft for a while before glide slope intercept is it possible the retard and flair would not have happened until coupled on GS?
So far, there is no indication that flare mode was ever active. Since the right FCC was doing the flying, the right radio altimeter, which was correct, was being used by the right FCC.
From what we have gathered, the autothrottle computer will enter retard mode when the autopilot is in single channel under these conditions:
27' or lower radio altitude
On G/S
Flaps > 12.5