Waiting aboard an American Airlines Boeing 777 at Dallas/Fort Worth, I decided to photograph aircraft taxiing past, but a member of the cabin crew told me to stop: my camera would interfere with aircraft systems. I could only take photographs above 10,000ft (3,000m).

This is the first time I have been told not to take photographs due to the "power" of the camera's battery.

Is the 777 affected by such a minuscule amount of electricity generated by a camera battery?

Graham Dinsdale

Huntingdon, UK

Source: Flight International