Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
Aviation Accident Data Summary - National Transportation Safety Board: https://app.ntsb.gov/pdf
Twin Oaks Airpark Inc: http://registry.faa.gov/N5440H
Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office: Hillsboro, Oregon
14 CFR Part 91: General Aviation
Accident occurred Sunday, March 12, 2017 in Hillsboro, OR
Probable Cause Approval Date: 06/07/2017
Aircraft: CESSNA 172, registration: N5440H
Injuries: 2 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 pilot reported that, during the landing roll with a “light quartering tailwind,” the airplane veered off the runway to the left into soft mud and nosed over.
The vertical stabilizer and rudder sustained substantial damage.
The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
The nearest automated weather observation station, located 7 nautical miles from the accident airport, about the time of the accident, recorded variable wind at 5 knots. The pilot reported that he landed on runway 2.
The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The pilot's failure to maintain directional control during the landing roll in quartering tailwind conditions.
The pilot reported that during the landing roll with a "light quartering tailwind," the airplane veered off the runway to the left into soft mud and nosed over.
The vertical stabilizer and rudder sustained substantial damage.
The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
The nearest automated weather observation station 7 nautical miles from the accident airport, about the time of the accident, recorded variable wind at 5 knots. The pilot reported that he landed on runway 2.
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