On 4 August 2012 an Easyjet Airbus A320 on approach to London Gatwick was given landing clearance in IMC for a runway occupied by a Boeing 737-400 waiting for take off which heard this transmission. Despite normal ground visibility and an unrestricted view of the runway, ATC failed to recognise their error and, after two unsuccessful attempts to advise them of it, the commander of the 737 instructed the A320 to go around which it did. Only upon hearing this did the controller realise what had happened.