By Graeme Murray & Isobel Williams A woman caused chaos as she tried to sneak on to a flight after she had been refused entry because of her passport. Mistura Alade and a girl who cannot be named for legal reasons broke through a security door and emergency exit, setting off two alarms at Gatwick Airport. She then fell over an airport worker on a staircase. The pair then tried to board the wrong aircraft before they were detained by police and security. Alade, 45, from Birmingham, had been told she and the girl couldn’t board their flight to Milan because there wasn’t three months left on thei…