for the past 2 weeks I tried to land this aircraft without any success I studied the manual watch any youtube that could give me a hint how to land the Q400. So far everything goes well The descent no problem . The approach set no problem.
Engage the approach after the LOC and pick up the glide slope without problem
At about 400ft before touch down and when the auto pilot shut down the plane start swigging from right to left and completely out of control . I tried more power but to no avail.
What causes this sorts of behaviour
Any help would be appreciated