LeadSled
At the risk of going slightly off thread and also of repeating myself, I quote from the B 767 vol 2
The (runway align) submode operates as follows:
- actuated at 500 feet RA with LAND 3 or LAND 2 annunciated.
- activation not displayed
- A/P system initiates a slip with a maximum bank angle of 2 degrees when the crab angle exceeds 5 degrees
- Wing levelling from the slip is initiated when the ROLLOUT mode is engaged
ROLLOUT mode engages at 5 foot R/A so the aircraft will probably still be wing down at touchdown.
It does not at any time "kick" off the drift, and from the way I read it, a crab angle of much greater than 5 degrees would result from a strong crosswind once tha A/P had adjusted to 2 degrees bank angle. That however would probably happen at crosswinds outside the certificated limit for autoland.