Crash-aerien 27 APR 2012 d'un Cessna 560XL Citation XLS N101PG - Eugene Airport, OR (EUG)
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Statuts:Accident investigation report completed and information captured
Date:vendredi 27 avril 2012
Type/Sous-type:Silhouette image of generic C56X model; specific model in this crash may look slightly different
Cessna 560XL Citation XLS
Compagnie:Pape Group Inc
Immatriculation: N101PG
Numéro de série: 560-5590
Année de Fabrication: 2005
Heures de vol:1937
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 1
Total:victimes: 0 / à bord: 3
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Eugene Airport, OR (EUG) (   Etats-Unis d'Amérique)
Phase de vol: A l'atterrissage (LDG)
Aéroport de départ:Denver-Centennial Airport, CO (APA/KAPA), Etats-Unis d'Amérique
Aéroport de destination:Eugene Airport, OR (EUG/KEUG), Etats-Unis d'Amérique
The pilot-in-command (PIC) reported that, during the visual approach to the airport, he and the second-in-command (SIC) lowered the landing gear and verified that all cockpit indications showed that the landing gear were in the down-and-locked position. The airplane touched down smoothly on the main landing gear (MLG) and then touched down on the nose landing gear (NLG). The PIC had his hand on the thrust reversers when he and the SIC heard the landing gear unsafe horn; the left MLG then collapsed followed immediately by the collapse of the right MLG and the NLG. The airplane slid on its belly for about 1,500 ft before it came to rest on the runway. Cockpit voice recorder data confirmed that the unsafe landing gear configuration warning did not occur before touchdown as reported by the PIC.
Postaccident examination revealed that, although the landing gear handle was in the down-and-locked position, all of the landing gear were fully retracted and engaged in their respective uplocks. Extensive testing of the airplane's hydraulic and electrical systems did not reveal any malfunctions that would have resulted in an uncommanded gear retraction. Some small, fine particulate matter was observed within the hydraulic manifold assembly; however, testing was unable to determine if these particles contributed to the uncommanded landing gear retraction.

Probable Cause:

Probable Cause: An uncommanded landing gear retraction after touchdown for reasons that could not be determined because postaccident examination did not reveal any mechanical malfunctions or failures that would have precluded normal operation.

Accident investigation:

Investigating agency: NTSB
Status: Investigation completed
Duration: 3 years and 2 months
Accident number: final report
Download report: Summary report


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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 Denver-Centennial Airport, CO et Eugene Airport, OR est de 1589 km (993 miles).
Accident location: Exact; deduced from official accident report.

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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