The largest single order for C919 landed: China Eastern Airlines orders 100 additional aircraft to be delivered in batches in the next 8 years. China Eastern has also become the world's largest user of the current C 919 large passenger aircraft. The first batch of 28 signed in 2021, China Eastern will order 5 additional C100 large passenger Aircraft. The current fleet size of China Eastern. Airlines exceeds 800, according to the fleet renewal plan, from 2024 to 2031, more than 200 narrow-body. aircraft are expected to withdraw from the fleet.