SHANGHAI, Feb. 23 (Xinhua) -- A C919 Chinese-produced large passenger jet landed in Shengli airport in Dongying city of east China's Shandong Province Sunday to conduct test flights.

The No. 106 C919 aircraft left the Shanghai Pudong airport at 11:08 a.m. and arrived in Dongying at 1:07 p.m., said sources with the Commercial Aircraft Corporation of China (COMAC), the manufacturer.

The aircraft will conduct tests concerning the passenger cabin, lighting and external noises at Dongying and other test bases, the sources said.

Meanwhile, China's domestically-developed ARJ21 regional aircraft are conducting intensive test flights, with the No.103 and No. 131 aircraft undergoing test flights Saturday at Shanghai's Pudong and Dachang airports, respectively.