Estado:	Final
Fecha:	15 DIC 1993
Hora:	17:33 PST
Tipo:	IAI 1124A Westwind II
Operador:	Martin Aviation
Registración:	N309CK
Numéro de série:	350
Año de Construcción:
Horas Totales de la Célula:	3027
Motores:	2 Garrett TFE731-3-1G
Tripulación:	Fatalidades: 2 / Ocupantes: 2
Pasajeros:	Fatalidades: 3 / Ocupantes: 3
Total:	Fatalidades: 5 / Ocupantes: 5
Daños en la Aeronave:	Destruido
Consecuencias:	Written off (damaged beyond repair)
Ubicación:	6,5 km (4.1 milles) N of Santa Ana-John Wayne International Airport, CA (SNA) (Estados Unidos de América)
Fase:	Aproximación (APR)
Naturaleza:	Ejecutivo
Aeropuerto de Salida:	La Verne-Brackett Field, CA (POC), Estados Unidos de América
Aeropuerto de Llegada:	Santa Ana-John Wayne International Airport, CA (SNA/KSNA), Estados Unidos de América

Descripción:
In-flight loss of control, rolled into a steep descent and crashed while on the final approach course for runway 19R. Wake turbulence from preceding Boeing 757 (United Airlines flight 103). The crew lacked specific wake turbulence training.

PROBABLE CAUSE: "The pilot-in-command's failure to maintain adequate separation behind the Boeing 757 and/or remain above its flight path during the approach, which resulted in an encounter with wake vortices from the 757. Factors related to the accident were: an inadequacy in the ATC procedure related to visual approaches and VFR operations behind heavier airplanes, and the resultant lack of information to the westwind pilots for them to determine the relative flight path of their airplane with respect to the Boeing 757's flight path."

Fuentes:
» NTSB