Détails:
About 15 minutes after takeoff from Victoria, while climbing through FL160 (en route to FL330), the airplane abruptly nosed over to approximately a forty-degree nose-down angle. The pilot disconnected the autopilot, throttled back to idle, and attempted to re-trim the airplane. He reported that the cockpit trim indicator was in the full forward (nose down) position and that neither the manual nor the electric trim actuators would respond to his inputs. After numerous configuration changes and unsuccessful attempts to regain full pitch control, the pilot elected to ditch the airplane in the water at Penns Cove, 200 yards from shore. Both occupants swam ashore.
PROBABLE CAUSE: "The loss of airplane pitch control (trim runway and mistrim condition) resulting from a failure in the airplane's electric pitch trim system. Factors that contributed to the accident were the manufacturer's inadequate design of the pitch trim circuitry that allowed for a single-point failure mode, and the absence of an adequate failure warning system to clearly alert the pilot to the pitch trim runaway condition in sufficient time to respond in accordance with the manufacturer's checklist instructions."
| Statuts: | Enquête Officielle |
| Date: | mardi 22 juillet 2003 |
| Heure: | 10:15 |
| Type/Sous-type: |  Cessna 525 CitationJet |
| Compagnie: | Tango Corp. |
| Immatriculation: | N996JR |
| Numéro de série: | 525-0147 |
| Année de Fabrication: | 1996 |
| Heures de vol: | 590 |
| Moteurs: | 2 Williams International FJ44-1A |
| Equipage: | victimes: 0 / à bord: 1 |
| Passagers: | victimes: 0 / à bord: 1 |
| Total: | victimes: 0 / à bord: 2 |
| Dégats de l'appareil: | Substantiels |
| Lieu de l'accident: | Oak Harbor, WA ( Etats-Unis d'Amérique)
|
| Phase de vol: | En vol (ENR) |
| Nature: | Privé |
| Aéroport de départ: | Victoria International Airport, BC (YYJ/CYYJ), Canada |
| Boise Air Terminal, ID (BOI/KBOI), Etats-Unis d'Amérique |
About 15 minutes after takeoff from Victoria, while climbing through FL160 (en route to FL330), the airplane abruptly nosed over to approximately a forty-degree nose-down angle. The pilot disconnected the autopilot, throttled back to idle, and attempted to re-trim the airplane. He reported that the cockpit trim indicator was in the full forward (nose down) position and that neither the manual nor the electric trim actuators would respond to his inputs. After numerous configuration changes and unsuccessful attempts to regain full pitch control, the pilot elected to ditch the airplane in the water at Penns Cove, 200 yards from shore. Both occupants swam ashore.
Probable Cause:
PROBABLE CAUSE: "The loss of airplane pitch control (trim runway and mistrim condition) resulting from a failure in the airplane's electric pitch trim system. Factors that contributed to the accident were the manufacturer's inadequate design of the pitch trim circuitry that allowed for a single-point failure mode, and the absence of an adequate failure warning system to clearly alert the pilot to the pitch trim runaway condition in sufficient time to respond in accordance with the manufacturer's checklist instructions."
Accident investigation:
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Sources:
» NTSBOpérations de secours
NTSB issued 3 Safety Recommendations
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Photos
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 Victoria International Airport, BC et Boise Air Terminal, ID est de 786 km (491 miles).
La distance entre Victoria International Airport, BC et Boise Air Terminal, ID est de 786 km (491 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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