Adam Air Boeing B-737-4Q8 went missing between Surabaya and Mandan, Indonesia on 1 January 2007 whilst carrying 102 passengers and crew. It is believed that the aircraft crashed into the sea. The bodies of those that died and the wreckage has not been recovered.
The crash is one of several transportation accidents which among them have resulted in large-scale transport safety reforms in Indonesia. Adam Air was subsequently banned from flying by the Indonesian government, and later declared bankruptcy.