London Executive Aviation is pushing Cessna to get early delivery of the first of seven Citation Mustangs it has ordered. The UK operator is set to receive the first two examples of the new very light jet in December next year but is now negotiating with the OEM to advance at least one of these deliveries into this year. The six-seat Mustang is due to complete certification in the fourth quarter of this year. London Executive is due to receive all seven aircraft by the first quarter of 2009 and has already indicated an intention to order more of them.