The 777 was designed to have remote operability, but the functionality was disabled post-9/11. The software logic is still in the flight control code, it's just dormant. I'm not aware of any other aircraft that had this feature.is technology available that you can take control of the plane from somewhere else in situations like this?
The thing that really gets me going, and it's part and parcel with my disdain for 'security theater' at airports, is that there is absolutely no way for anyone in the crew to override the cockpit lock from the cabin. If someone in the cockpit decides they don't want to open the door, that door is not being opened. That's what's known as a 'single point of failure', and the people who insisted on this sort of change to airliners are, imo, culpable in this tragedy. It's a completely stupid rule that was born in the panic after 9/11, where normally right minded people utterly lost their minds in the pursuit of 'security'.