- You may be looking for the documentary of the same name.
How to Land a Plane Without a Cockpit was a pamphlet made by the Thirteenth Doctor.
In 2020, after the Kasaavin were prevented from invading N-Space, the Doctor went back in time to save her companions. She created this pamphlet, put it in the VOR plane 4C seat pocket and left some plates on the plane for Ryan Sinclair so that he could find it.
According to the pamphlet, to take control of the plane one should open a panel on the floor and connect the cable to one's phone. After that, an app automatically downloaded and installed on the phone. It could be used to communicate with the engines via the aircraft wiring.