On January 20, 1999, a Cessna 172R (registration N4172P) was involved in an aviation accident near Chesterfield, MO. No fatalities were reported. Investigators recorded the probable cause as: the instructor pilot's failure to maintain aircraft control. Factors contributing to this accident were the snow covered grassy field area along the side of the runway and the pile of snow. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.
During a training flight, the instructor pilot reported a right brake malfunction while taxiing. The airplane deviated left, departed the runway into snow, and pivoted, resulting in the right wing striking the ground.
Incident Details
The instructor pilot stated that he took control of the airplane approximately 200 feet before the taxiway and began applying brake pressure to slow down. As the airplane approached the taxiway, it gradually deviated to the left of the runway centerline. The instructor applied right rudder pedal and then the right brake, but there was no braking response. He subsequently applied full right brake and found that the right brake had no response or pressure and could be applied to its full limit with no resistance felt.
Runway Departure and Subsequent Movement
The airplane's left main landing gear departed the edge of the runway and rolled into the snow. The airplane then pivoted counter-clockwise until the nose gear contacted a 2-foot-thick pile of snow. The airplane tipped forward and to the right onto the nose gear and right main landing gear, causing the right wing to strike the ground.
Post-Event Examination
Examination of the airplane revealed no anomalies.
What happened in the 20 Jan 1999 Cessna 172R accident near Chesterfield, MO?
During a training flight, the instructor pilot reported a right brake malfunction while taxiing. The airplane deviated left, departed the runway into snow, and pivoted, resulting in the right wing striking the ground.
Were there any fatalities in the 20 Jan 1999 Cessna 172R accident?
No fatalities were recorded in this accident.
What aircraft was involved and where did it happen?
The accident on 20 Jan 1999 involved a Cessna 172R, registration N4172P, at Chesterfield, MO.
What was the probable cause of the accident?
the instructor pilot's failure to maintain aircraft control. Factors contributing to this accident were the snow covered grassy field area along the side of the runway and the pile of snow.
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