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Statuts:Enquête Officielle
Date:vendredi 22 janvier 1999
Type/Sous-type:Silhouette image of generic C650 model; specific model in this crash may look slightly different
Cessna 650 Citation VII
Compagnie:Executive Jet Aviation
Immatriculation: N782QS
Numéro de série: 650-7082
Année de Fabrication:
Equipage:victimes: 0 / à bord: 3
Passagers:victimes: 0 / à bord: 1
Total:victimes: 0 / à bord: 4
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Columbus-Port Columbus International Airport, OH (CMH) (   Etats-Unis d'Amérique)
Phase de vol: A l'atterrissage (LDG)
Aéroport de départ:Cincinnati Municipal Airport, OH (LUK/KLUK), Etats-Unis d'Amérique
Aéroport de destination:Columbus-Port Columbus International Airport, OH (CMH/KCMH), Etats-Unis d'Amérique
A Cessna 650 Citation VII, N782QS, was substantially damaged when the right main landing gear collapsed during landing at the Port Columbus International Airport (CMH), Columbus, Ohio. The flight was operated as a training flight with two certificated airline transport pilots, a company pilot, and a company intern on board. Visual meteorological conditions prevailed and an instrument flight plan had been filed for the flight which departed the Cincinnati Municipal/Lunken Field Airport.
The pilot receiving instruction was performing an instrument approach to runway 28L, a 10,250 foot long, 150 foot wide, asphalt runway. Upon landing the airplane bounced slightly. At that point the crew heard a loud pop and the right wing started to dip.
The airplane veered off the right side of runway 28L, and then impacted the "C4" taxiway sign located about 7,650 feet from the approach end of the runway.

Examination of the landing gear components did not reveal any internal failures or malfunctions. Testing revealed it was possible for the side brace actuator to unlock mechanically by repeated cyclic compressive loading. The compressive load was cycled between near zero, up to values ranging from 1/2 the maximum limit value to near the maximum limit values. During testing, it required a minimum of 50 cycles before the side brace actuator could be induced to unlock.

Probable Cause:

The collapse of the airplane's right main landing gear due to inadequate design by its manufacturer.

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 5 months
Accident number: NYC99LA051
Download report: Summary report
Language: English



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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 Cincinnati Municipal Airport, OH et Columbus-Port Columbus International Airport, OH est de 163 km (102 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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