Hi, Hi, When I am at the landing phase, it seems that I cannot stabilize the speed when I disconnect the AP. It seems that this AT only works with the AP switched ON. Is that true? If not how to do that?Coimbra

Hi Coimbra,The A/P and A/T are totally unrelated. Either one has their own set of regulators. Should work fine separately. Crosscheck your procedures towards the extended checklists to catch any input errors.Hope it helps,

Howdy,Using AT without AP works fine though the speed has to be dialed in through the MCP (using SPEED for instance), not the FMC. Steven. W.