Crash-aerien 10 APR 2015 d'un Gulfstream G-IV N450KK - Caribbean Sea
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Statuts:Accident investigation report completed and information captured
Date:vendredi 10 avril 2015
Type/Sous-type:Silhouette image of generic GLF4 model; specific model in this crash may look slightly different
Gulfstream G-IV
Compagnie:La Venezolana de Seguros y Vida
Immatriculation: N450KK
Numéro de série: 1225
Année de Fabrication: 1993
Heures de vol:7473
Moteurs: 2 Rolls-Royce Tay 611
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 0
Total:victimes: 0 / à bord: 2
Dégats de l'appareil: Substantiels
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:au dessus de Caribbean Sea (   Océan Atlantique)
Phase de vol: En vol (ENR)
Aéroport de départ:Caracas-Simón Bolívar International Airport (CCS/SVMI), Vénézuela
Aéroport de destination:Fort Lauderdale-Executive Airport, FL (FXE/KFXE), Etats-Unis d'Amérique
A Gulfstream G-IV, N450KK, was substantially damaged during a cabin over-pressurization event over the Caribbean Sea while en route to Fort Lauderdale-Executive Airport, Florida (FXE). The pilots were not injured. The airplane was operated by a private company. Day, visual meteorological conditions prevailed, and an instrument flight rules flight plan was filed. The flight originated at Caracas-Simón Bolívar International Airport, Venezuela about 16:30.
The pilot reported that the purpose of the flight was to fly the airplane to FXE for scheduled maintenance. About 2 hours and 15 minutes after departure, at flight level 430, the crew observed a red warning light indicating a maximum cabin differential pressure of 9.8 psi, followed by a red "DOOR MAIN" indication. The pilots donned oxygen masks and referenced the airplane's quick reference handbook. A loud "bam" sound was then heard in the cabin and the crew initiated an immediate descent. The cabin pressure outflow valve was opened manually and the airplane was leveled at 12,000 feet above mean sea level. The flight continued to FXE unpressurized and landed without further incident. After landing, the crew performed a walk-around inspection and found no obvious anomalies with the airplane.
A subsequent inspection of the airplane by maintenance and engineering personnel revealed structural airframe damage, including a cracked floor beam, dimpled areas in the floor boards, damaged structure between ribs, and damaged wing links. An initial examination of the fuselage revealed that the outflow valve safety port, located on the outer fuselage, was completely plugged with a foreign material resembling dried dirt from a mud dauber.

Probable Cause:

PROBABLE CAUSE: "The in-flight failure of the cabin pressurization relief/safety valve (CPRV) due to an obstruction of the CPRV static port, which allowed the airplane to overpressurize. The reason for the initial overpressurization condition could not be determined."



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Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Caracas-Simón Bolívar International Airport et Fort Lauderdale-Executive Airport, FL est de 2207 km (1379 miles).

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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