Korean Air Cargo Flight 8509 was a Boeing 747-2B5F, registered HL7451 and bound for Milano-Malpensa Airport, that crashed due to pilot error on 22 December 1999 shortly after take-off from London Stansted Airport. The aircraft crashed into Hatfield Forest near the village of Great Hallingbury close to but clear of some local houses. All 4 crew on board were killed.[2]