Thanks@MAPS for the plane and thanks@Blaine114for JT3D ENG and livery for Air China 737 I used the livery job on the nose of the aircraft and modified it ,adding the distinctive black smoke of the era's engines to make it more realistic.

The Boeing 707, numbered 2402, was one of the few American passenger planes to enter service in the communist country during that era. It was the first Boeing aircraft introduced to China. At that time, China had not yet joined ICAO. The "B" at the beginning of the registration number is the number assigned by ICAO, so at that time, the registration number of this aircraft did not have a "B". Unfortunately, the aircraft was later damaged and scrapped in a hijacking incident.