Monday, September 12, 2016

Cessna 170B, Yellowstone Welding Inc., N8335A: Accident occurred September 10, 2016 in Sidney, Richland County, Montana

Additional Participating Entity: 
Federal Aviation Administration / Flight Standards District Office: Helena, Montana

Aviation Accident Factual Report - National Transportation Safety Board: 

Docket And Docket Items - National Transportation Safety Board:

Yellowstone Welding Inc:

NTSB Identification: GAA16CA492
14 CFR Part 91: General Aviation
Accident occurred Saturday, September 10, 2016 in Sidney, MT
Aircraft: CESSNA 170, registration: N8335A
Injuries: 3 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The flight instructor reported that during the instructional flight in a tailwheel equipped airplane, the student pilot bounced the landing. The airplane bounced off the grass airstrip and the flight instructor reported that he took the flight controls, but the airplane drifted to the left and into a drainage ditch. The flight instructor reported that he corrected with right rudder application to ease the airplane out of the ditch, but the left landing gear tire deflated and the left wing and the tail struck the ground. The airplane yawed to the left, the instructor corrected the yaw and the airplane rolled onto the runway and stopped. The left wing, left aileron and the elevator sustained substantial damage.

The flight instructor reported that there were no mechanical malfunctions or anomalies prior to landing in the ditch that would have prevented normal flight operation.

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