It's a rule airlines have been very clear on for a long time – mobile phones cannot be used during a flight, unless tracking functions are disabled.
Aside from a growing number of planes that offer in-flight WiFi, this rule has forced us into a digital detox for a number of hours – whether we like it or not.
While we're told that signals from mobile phones can interfere with a plane's navigational equipment – which sounds dramatically dangerous – it seems this might not be entirely true.
These days, the rule may be more to do with preventing a cabin full of passengers nattering away on their phones – which could cause a lot of problems in the age of increasing "air rage" incidents.
American pilot Patrick Smith, founder of Askthepilot.com, told Wales Online: "It's unlikely that a mobile phone can cause problems in the cockpit, particularly on modern aircraft where components are, by design, carefully shielded, but it's not impossible.