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Statuts:Enquête Officielle
Date:mardi 15 décembre 1992
Heure:09:12
Type/Sous-type:Silhouette image of generic B18T model; specific model in this crash may look slightly different
Volpar Turboliner II
Compagnie:Mohican Air Service
Immatriculation: N706M
Numéro de série: 4251
Année de Fabrication:
Heures de vol:16115
Moteurs: 2 Garrett TPE331
Equipage:victimes: 1 / à bord: 1
Passagers:victimes: 0 / à bord: 0
Total:victimes: 1 / à bord: 1
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Cleveland, OH (   Etats-Unis d'Amérique)
Phase de vol: Au décollage (TOF)
Nature:Convoyage
Aéroport de départ:Cleveland-Hopkins International Airport, OH (CLE/KCLE), Etats-Unis d'Amérique
Aéroport de destination:Syracuse-Hancock International Airport, NY (SYR/KSYR), Etats-Unis d'Amérique
Détails:
After rotation, during the initial climb, the nose of the airplane pitched up to approximately 60 degrees above the horizon. The airplane continued to climb until about 250 feet above the ground, then rolled right, pitched down and descended. The airplane impacted the ground, approximately 45 degrees nose down, 650 feet to the right of the runway. Post accident investigation of the wreckage revealed the elevator jammed in the full up deflection. The upper end of the elevator control rod was found not connected to the elevator, but was found laying aft, wedged between the tail cone and the elevator faring, holding the elevator in the full up position. The control rod connecting bolt was found laying in the bottom of the tail cone undamaged. The washer, nut and cotter pin related to the control rod connecting bolt were not found. The elevator had been removed, recovered and then installed by company maintenance personnel 166 flight hours prior to the accident.
The aircraft, a Volpar Turboliner II cargo plane, was a stretched turbine conversion of a Beechcraft SNB-5 Navigator (Redesignated TC-45J in 1962) that was operated by the US Navy.

Probable Cause:

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
"The improper installation of the elevator by company maintenance personnel and the lack of proper inspections by a company certified mechanic/inspector and the FAA certified mechanic with inspector authorization. A factor in this accident was an insufficiently defined maintenance procedures that allowed multiple maintenance tasks to be combined into a single line entry."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 273 days (9 months)
Accident number: NYC93FA044
Download report: Summary report
Language: English

Sources:
» NTSB


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Plan
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 Cleveland-Hopkins International Airport, OH et Syracuse-Hancock International Airport, NY est de 505 km (316 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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