After a plane skidded 20 meters (yards) off a taxiing lane, Moscow's main international airport shut down for several hours Monday.
None of the 75 passengers and crew was injured.
A wet snow fell throughout the day, but she said the weather was not to blame, and crew error was the suspected cause.
The plane was operated by regional Russian carrier Aeroflot-Don.
All departures and arrivals were suspended, and several international flights were rerouted to other Moscow airports.