Sukhoi's civil aircraft division delivered six Superjet 100s over the first half of the year, compared with nine in the previous interim period.
Revenues for the airframer were down by 25% to Rb10.9 billion ($182 million), the company states in a first-half financial disclosure.
Sukhoi adds that it turned in a pre-tax loss for the six-month period of just over Rb1 billion, in contrast to a profit of Rb1.3 billion last year.
The company recorded a net loss of Rb751 million.
Sukhoi says the fall in deliveries results from a different supply schedule, adding that the "bulk" of deliveries will take place in the second half of the year.
Source: Cirium Dashboard
