Raytheon Aircraft is trying to obtain approval for the Hawker 400XP to use London City Airport. The aircraft has already made a test flight into the downtown London airport in a bid to convince the European Aviation Safety Agency (EASA) that it can handle the 5.5-degree steep approach and 4,300-foot runway. Besides aircraft type approval, individual operators must modify their operating manuals and crewmembers need to be EASA-qualified to fly the approach.