Commercial Aircraft Corp. of China Ltd. (COMAC) on Sunday made its first international delivery of the domestically developed ARJ21-700. The aircraft, which was delivered to TransNusa Airlines of Indonesia, has 95 economy-class seats. Photo: Xinhua

An ARJ21 performs high-altitude take-off and landing tests at an airport in Southwest China’s Sichuan province in July 2020. Photo: VCG

Pilots prepare for the take-off and landing tests. Photo: VCG

Air China flight attendants train in June 2020 to work on the ARJ21. China’s three largest state-owned airlines, Air China, China Eastern and China Southern, received their first ARJ21s in Shanghai that month. Photo: Yin Liqin/China News Service, VCG

Workers prepare an ARJ21 prototype to be showcased at Airshow China 2014 in Zhuhai, South China’s Guangdong province. The model obtained certification that year. Photo: VCG

Structural assembly of the ARJ21 prototype began in March 2007. The aircraft’s first prototype was completed that December. Photo: VCG

An ARJ21 gets a water salute in January 2021 at Chengdu Tianfu International Airport in Chengdu, Southwest China’s Sichuan province. Photo: VCG

People take photos of a delivered ARJ21 aircraft on the ground in North China’s Tianjin municipality on July 29. Chengdu Airlines put the aircraft into service in June 2016. Photo: Dong Yu/China News Service, VCG