Saudi Arabian Airlines confirmed to AeroTime the aircraft that crash landed on May 21, 2018, was wet-leased from the low-cost airline Onur Air, meaning that the flight crew was entirely composed of employees from the Turkish airline.The incident was the second of two mishaps involving Onur Air in a week.

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An A330-200 of Saudi Arabian Airlines carried out an emergency landing in King Abdulaziz International Airport (JED) in Jeddah, Saudi Arabia, on May 21, 2018, resulting to 53 passengers being injured. The plane was forced to undergo a belly landing, as the hydraulic system in its front landing gear malfunctioned. The bottom of the aircraft suffered heavy damages after its nose sank into the ground.
 

On May 20, 2018, an Airbus A321-200 of Onur Air was diverted to Volgograd International Airport (VOG) for an emergency landing after its cabin lost pressure. The flight took off from Antalya Airport (AYT) in Turkey and was bound for Chelyabinsk Airport (CEK) in Russia. 226 passengers and 8 crew members were aboard at the time.

The plane (registered as TC-OBZ) was about 2h10 into its flight, above the Russian city of Oktyabrsky, when the pressure dropped in the cabin. Oxygen masks were released and pilots immediately initiated a descent of 24,000 feet in less than eight minutes before being diverted to Volgograd where they landed about 20 minutes later.

No injuries were reported among the passengers. Some were accommodated in a hotel of the region; others were transported by another A321-200 of the company registered TC-OBJ that reached Chelyabinsk Airport twelve hours behind schedule. After a day of maintenance, TC-OBZ resumed operations on May 22, 2018.