Singapore Airlines: Pilot says fatal flight 'flew through Danger Zone that kills 100s'
![Singapore Airlines: Pilot says fatal flight 'flew through Danger Zone that kills 100s'](https://i2-prod.mirror.co.uk/incoming/article32863842.ece/ALTERNATES/s615/2_THP4537JPG.jpg)
Former pilot Marco Chan believes the stricken Singapore Airlines flight from London Heathrow hit turbulence as it entered what is known as the Intertropical Convergence Zone (ICZ)