(原始内容存档于2021-11-03). Hradecky, Simon. Crash: Optimum AN26 at Juba on Nov 2nd 2021, lost height after takeoff. The AviationHerald. [2021-11-06]. (原始内容存档于2021-12-15).
The AviationHerald. [12 April 2019]. (原始内容存档于2021-09-07). Incident: Delta A320 at Rapid City on Jul 7th 2016, landed on wrong airport. The Aviation Herald