A British Airways Boeing 777 bound for Chicago fell more than 27,000 feet over Ireland, declared an emergency and returned to London, where it landed safely.

A British Airways Boeing 777 bound for Chicago fell more than 27,000 feet over Ireland, declared an emergency and returned to London, where it landed safely.
✈️ British Airways BA295 : le vol à destination de Chicago est revenu à Heathrow après une descente d’urgence. L’appareil a atterri en sécurité.
What does a big plane do if the landing gear is fucked while in flight? I saw a Thunderbirds once where a nuclear powered super passenger jet had to land on drone vehicles, but I imagine they have something more mundane planned for Flight BA295 if that is the case?