Historical Account: "Parking Problems" - The development and production of aircraft must have a stable environment and must be carried out in an orderly manner in accordance with scientific laws. In the early development and production process of the J-6 aircraft, we encountered many bottlenecks due to overconfidence and blindness, and we also experienced many quality rectifications. "Science must not be false" - this famous saying was fully confirmed in the trial production process of the J-6. After the enthusiasm of the Great Leap Forward, the Air Force has been able to calmly view the gap between the level of the domestic aviation industry and the air force's equipment requirements.

In the 1970s, the Chinese Air Force was equipped with approximately 3,000 F-6 fighters. There were more than 180 accidents of aerial parking each year, causing multiple first-class accidents. Air Force J-6 fighters have been grounded several times. In September 1974, the Air Force grounded more than 60% of the J-6 fighters, which even severely jeopardized the air defense mission of the capital, Beijing, and had to urgently deploy fighters from the southwest to Yangcun Airport. It was not until the late 1970s and early 1980s that the manufacturing quality of the J-6 had a fundamental change. By 1980, the fourth batch of improved models (the last batch of improved models), the J-6 completely entered the mature stage of quality, with exquisite product craftsmanship. With excellent quality and reliable performance, it began to gain praise from users at home and abroad. At this time, 20 years had passed since the first batch production of the J-6 in 1960.