Well, if it was the Transaero in Moscow, I donīt think it will be leaving LHR for a while. Not sure if it was a passenger carrying or ferry flight. If it was carrying passengers it raises questions of when it became suspect....
The Grauniad: .......Mr Reid said in a statement to the Commons: "A fourth aircraft of interest, which is a Boeing 737 leased by Transaero, arrived at London Heathrow Terminal One this morning. Passenger details will be collected and the Health Protection Agency (HPA) will contact individuals if any matters of concern are found."