Russian aviation authorities have barred jet operator RusAir from conducting flights, citing safety concerns in the wake of the fatal accident involving a RusAir Tupolev Tu-134.
Federal transport supervision service Rostransnadzor said an ad hoc commission had conducted a probe into the crash, which took place during approach to Petrozavodsk airport on 20 June.
"It has found errors in RusAir's operational work and recommended suspending its air operator's certificate," said a spokesman.
"The appropriate decision came into effect on 13 July."
He suggested that the airline could be allowed to resume services if it eliminates defects over the next three months.