Incident Overview
Date: Wednesday 26 September 1984
Aircraft Type: Cessna 500 Citation I
Owner/operator: Air Niagara
Registration Number: C-GXFZ
Location: near Orillia Airport, ON –
ÿ Canada
Phase of Flight: En route
Status: Destroyed, written off
Casualties: Fatalities: 2 / Occupants: 2
Component Affected: Aircraft Control System (specifically, roll control and stability)Aircraft Control System (specifically, roll control and stability)
Investigating Agency: CASBCASB
Category: Accident

An aircraft on a VFR training flight from Toronto, Canada, experienced a sudden and uncontrolled roll to the right, resulting in a near-vertical left-wing-down attitude and impact with the ground. The aircraft’s climb-out and subsequent descent were marked by a roll, leading to this accident.An aircraft on a VFR training flight from Toronto, Canada, experienced a sudden and uncontrolled roll to the right, resulting in a near-vertical left-wing-down attitude and impact with the ground. The aircraft’s climb-out and subsequent descent were marked by a roll, leading to this accident.
Description
The aircraft was on a VFR training flight from Toronto, Canada. After departing Toronto at 11:07 the aircraft climbed to 9500 feet and was flown to Orillia Airport. Approaching Orillia Airport, the crew stated their intention to do a fly-past on runway 04. The aircraft descended to approximately 150 to 200 feet over the runway at a speed of about 200 knots. During the climb-out and at about 1,000 feet above the ground, the aircraft started a roll to the right to an inverted attitude. It then descended steeply, striking the ground right side up in a near vertical left-wing-down attitude. CAUSE-RELATED FINDINGS: “The contributing factors and causes of this accident could not be determined.”
Primary Cause
Uncontrolled roll during climb-out and descent, likely due to a combination of pilot error and potentially unstable aircraft conditions.Uncontrolled roll during climb-out and descent, likely due to a combination of pilot error and potentially unstable aircraft conditions.Share on: