Accident
Last updated: 26 November 2014
Statuts:Enquête Officielle
Date:lundi 26 juillet 1993
Heure:13:52
Type/Sous-type:Silhouette image of generic CRJ1 model; specific model in this crash may look slightly different
Canadair CL-600-2B19 Regional Jet CRJ-100
Compagnie:Bombardier Aerospace
Immatriculation: C-FCRJ
Numéro de série: 7001
Année de Fabrication: 1991
Heures de vol:771
Cycles:800
Equipage:victimes: 3 / à bord: 3
Passagers:victimes: 0 / à bord: 0
Total:victimes: 3 / à bord: 3
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Byers, KS (   Etats-Unis d'Amérique) show on map
Phase de vol: En cours de manoeuvre (MNV)
Nature:Test
Aéroport de départ:Wichita-Mid-Continent Airport, KS (ICT/KICT), Etats-Unis d'Amérique
Aéroport de destination:Wichita-Mid-Continent Airport, KS (ICT/KICT), Etats-Unis d'Amérique
Détails:
The Canadair plane was on a test flight out of Wichita, KS to evaluate flying qualities in a new 8deg. takeoff flap setting and to demonstrate compliance with US 14 CFR 25:177 rules. The aircraft lost control during a low speed steady-heading sideslip test manoeuvre at FL120. The crew were to end a Steady Heading Sideslip (SHSS) manoeuvre at a 15deg sideslip, but continued to 21deg. at full rudder. The plane rolled rapidly through 360deg and entered a deep stall. As it descended through 8000 feet the captain requested the co-pilot to deploy the anti-spin parachute, which he complied with. The co-pilot however, didn't close the jaws (which connect/disconnect the parachute from the airplane) before chute deployment. The chute thus fell free of the plane. Control was not regained and the aircraft crashed and skidded for about 200 yards through several cornfields.

PROBABLE CAUSE: "The captain's failure to adhere to the agreed upon flight test plan for ending the test manoeuvre at the onset of prestall stick shaker, and the flight crew's failure to assure that all required switches were properly positioned for anti-spin chute deployment. A factor which contributed to the accident was the inadequate design of the anti-spin chute system which allowed deployment of the chute with the hydraulic lock switch in the unlocked position. (When in the unlocked position, the hooks clasping the chute shackle to the airframe are open.)"

Sources:
» Air International September 1993, p.127
» Aviation Week & Space Technology 02.08.1993 (39-40)
» NTSB Safety Recommendation A-94-101
» Scramble 170


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Plan
Ce plan montre l'aéroport de départ ainsi que la supposé destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Wichita-Mid-Continent Airport, KS et Wichita-Mid-Continent Airport, KS est de NAN km (NAN 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 tels qui sont connus à ce jour.
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