Turkish Airlines Flight 5904 crashes near Ceyhan in southern Turkey, killing six people.

Turkish Airlines Flight 5904 was a Boeing 737-400 on an international repositioning flight from Adana Şakirpaşa Airport in Adana, Turkey, to King Abdulaziz International Airport in Jeddah, Saudi Arabia, which crashed on 7 April 1999 in the vicinity of Ceyhan, Adana Province, in southern Turkey, eight minutes after takeoff. The flight was on its way to Saudi Arabia to pick up pilgrims from Jeddah, and as such took off without any passengers on board. All six crew members were killed in the accident.

Ceyhan is a municipality and district of Adana Province, Turkey. Its area is 1,426 km², and its population is 158,922 (2022). It is the most populous district of the province, outside the city of Adana. Ceyhan is the transportation hub for Middle Eastern and Central Asian oil and natural gas. The city is situated on the Ceyhan River that flows through Çukurova plain. The Ceyhan River is dammed at Aslantas to provide flood control and irrigation for the lower river basin around Ceyhan.

April 7 is the 97th day of the year in the Gregorian calendar; 268 days remain until the end of the year.