Originally Posted by
Boyington
During an Autoland in CAT III B conditions, if the ROLL OUT mode does not engage what is the action to be taken?
Does one disconnect the AP and follow the Yaw Bar or carry out a Go Around?
Thanks
Realistically speaking, by the time the CM2 realizes that ROLLOUT did not engage You would have already deployed the reverse, hence go around is not an option anyway.
FCOM says :
DIRECTIONAL CONTROL .................................................. MONITOR/ENSURE
– Monitor directional control, if the rollout is automatic. If rollout guidance is not
satisfactory, immediately disconnect AP and revert to manual directional
control.
With a few meters of RVR and a good back-up from the CM2 pointing out LOC deviations, you will be able to satisfactorily control the rollout on the ground.
Notwithstanding with the above, if You have not started reverse deployment at touch down, go around is always an option.