Air China CA428, a A320 Airbus, departed Hong Kong International Airport for Chengdu in China on Sunday when the pilot veered off the normal departure route and headed for the mountainous Lantau Island. The aircraft was at 3400 feet, the highest peak on the island is 3066 feet. A minimum safe altitude for the island is 4300 feet.
ATC issue a "Turn right immediately and expedite climb"
Story, flight path and ATC recording here:
http://news.com.au/travel/travel-upd...d93d339aa2e256