Russia’s Federal Air Transport Agency, Rosaviatsia, has restricted Moscow-based Red Wings Airlines’ air operator’s certificate (AOC), prohibiting it from SSJ100 aircraft operations. The decision takes effect from July 1.

The restriction was made after an inspection carried out earlier this year, Rosaviatsia said in a statement.

Red Wings, which did not comment on the situation, disclosed the decision to cease SSJ100 operations in April 2016.

Moscow-based Red Wings took delivery of the first of three leased SSJ100s from Russia’s Sukhoi Civil Aircraft Co. (SCAC) in January 2015. Two more aircraft were delivered to the carrier in the second half of last year, while the first three delivered aircraft were sold by SCAC to the State Transport Leasing Co.

The airline also operates a fleet of Russian-built Tupolev Tu-204 aircraft. In 2015, the airline carried 1.035 million passengers, up 12.7% year-over-year.