Runway excursion Accident Cessna 170 N9972A,
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ASN Wikibase Occurrence # 298086
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Date:Saturday 6 January 2018
Time:11:00 LT
Type:Silhouette image of generic C170 model; specific model in this crash may look slightly different    
Cessna 170
Registration: N9972A
MSN: 19553
Year of manufacture:1950
Total airframe hrs:3272 hours
Engine model:Continental C145 SERIES
Fatalities:Fatalities: 0 / Occupants: 4
Aircraft damage: Substantial
Location:Ponca City, Oklahoma -   United States of America
Phase: Take off
Departure airport:Ponca City Airport, OK (PNC/KPNC)
Destination airport:Enid Woodring Municipal Airport, OK (WDG/KWDG)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The pilot departed with a quartering tailwind in a tailwheel-equipped airplane. During the takeoff roll, the airplane veered left; the pilot reported that he applied rudder to stop the turn, but the airplane continued to veer left. As the airplane exited the left side of the runway, the right main landing gear separated from the airplane, and the fuselage and right wing sustained substantial damage. Examination revealed that the main landing gear fracture surfaces were consistent with an initiating fatigue fracture that propagated toward an overstress fracture; the size of the fatigue crack before the final overstress fracture could not be determined.

It is likely that the pilot lost control of the airplane during takeoff in a quartering tailwind.

Probable Cause: The pilot's loss of directional control during takeoff with a quartering tailwind, which resulted in a runway excursion.

Accident investigation:
Investigating agency: NTSB
Report number: CEN18LA070
Status: Investigation completed
Duration: 2 years and 8 months
Download report: Final report




Revision history:

15-Oct-2022 12:48 ASN Update Bot Added

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