What happens to flaps if slat travel stops?

When slat travel stops, the flaps will continue to their selected position. This is because the flap system and the slat system are designed to operate independently within their respective ranges of motion. If slat extension is interrupted for any reason, it does not automatically initiate a retraction of the flaps. Instead, the flaps will remain in the position they were in when the slat travel ceased.

This design allows for the aircraft to maintain its current lift and aerodynamic configuration regardless of whether the slats are functioning properly or not. It's essential for pilots to understand this functionality, as it impacts the aircraft's performance characteristics during various phases of flight. For example, should the slats fail while flaps are deployed, pilots will need to be aware that the flaps are still providing lift at the current setting, and they may need to adjust their approach or takeoff strategy accordingly.