ZRCC Quality & Technology Center (Q&T Center) has a jet fuel thermal oxidation stability tester, which was manufactured by an US company. After 13 years of service, this machine has to be disposed as scrap due to lack of spare parts and repair service from the vender.

According to investigation, a new apparatus of this type needs at least 1 million USD, and the long lead time will impact the normal analysis of production. The Q&T Center contacted a company based in Shanghai, and worked together to use purchased components of main board to gradually replace the original ones. After many times of replacements and trials, they finally solved the problem. At present, the repaired apparatus has been put into service after calibration.