The aircraft was on a test flight when it suffered control problems.
An Embraer E190 plane and registration P4-KCJ, belonging to Air Astana, suffered a serious problem in its control system while making a test flight over the skies of Portugal last Saturday.
In the middle of a storm of wind and water, the aircraft was left without landing controls and the pilots declared the emergency at 2:00 pm local time.
Two F-16 aircraft of the Portuguese Air Force were sent in order to accompany and guide the aircraft, which was flying erratically southeast of Lisbon, while looking for an airport with acceptable visibility to land.
After an hour, where the authorities shuffled to the idea of a splashdown, the Air Astana plane went to the Beja Airport (BYJ), located 150 kilometers from Lisbon.
As the Embraer approached, the pilots decided to get rid of fuel to lighten the aircraft and avoid possible fires, while on the ground the airport teams prepared for a possible emergency.
After a failed first attempt, the plane landed without major problems.
Air Astana is a company based in Almaty, Kazakhstan, which sent its plane to Portugal for maintenance. Two pilots and four technicians were on board, who were not injured.