A Saha Airlines Boeing 707 crashes at Fath Air Base near Karaj in Alborz Province, Iran, killing 15 people.

Saha Airlines is an Iranian airline based in Tehran that operates scheduled domestic flights.

The Boeing 707 is an early American long-range narrow-body airliner, the first jetliner developed and produced by Boeing Commercial Airplanes. Developed from the Boeing 367-80 prototype, the initial 707-120 first flew on December 20, 1957. Pan Am began regular 707 service on October 26, 1958. With versions produced until 1979, the 707 is a swept wing quadjet with podded engines. Its larger fuselage cross-section allowed six-abreast economy seating, retained in the later 720, 727, 737, and 757 models.

On 14 January 2019, a Boeing 707 operated by Saha Airlines on a cargo flight crashed at Fath Air Base, near Karaj, Alborz province in Iran. The aircraft was the last civil Boeing 707 in operation.

Fath Air Base is a military airfield near Karaj, Alborz Province, Iran.

Karaj is a city in the Central District of Karaj County, Alborz province, Iran, serving as capital of the province, the county, and the district. Earliest evidence of inhabitation in Karaj can be dated to the Bronze Age at Tepe Khurvin. The city was developed under the rule of the Safavid and Qajar Empire and is home to historical buildings and memorials from those eras. This city has a unique climate due to access to natural resources such as many trees, rivers, and green plains. After Tehran, Karaj is the largest immigrant-friendly city in Iran, so it has been nicknamed "Little Iran."