Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Oklahoma City, Oklahoma
Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
http://registry.faa.gov/N9972A
Location: Ponca City, OK
Accident Number: CEN18LA070
Date & Time: 01/06/2018, 1100 CST
Registration: N9972A
Aircraft: CESSNA 170
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries:4 None
Flight Conducted Under: Part 91: General Aviation - Personal
On January 6, 2018, about 1100 central standard time, a Cessna 170A airplane, N9972A, was substantially damaged when it was involved in an accident near Ponca City, Oklahoma. The pilot and three passengers were not injured. The airplane was operated by a private individual as a Title 14 Code of Federal Regulations Part 91 personal flight.
The pilot stated that prior to takeoff he observed that the windsock indicated a direct crosswind. He began a takeoff roll on runway 35. On takeoff the airplane began to veer left. The pilot added that he applied rudder to correct for the airplane's left turn. However, the airplane continued to veer left and as it approached the side of the runway, the pilot reduced power. As the airplane exited the side of the runway, the right main landing gear separated from the airplane. The airplane came to rest in the grass off the runway surface. Substantial damage was sustained to the fuselage and right wing spar
A review of wind conditions, about the time of the accident, found the wind was reported as 100° at 10 knots.
The landing gear was photo documented by the Federal Aviation Administration. Photos were examined by the NTSB Materials Laboratory and discovered that the fracture surfaces were consistent with an initiating fatigue fracture which propagated towards an overstress fracture.
The pilot reported having over 100 hours in tailwheel equipped airplanes.
Pilot Information
Certificate: Airline Transport; Commercial
Age: 66, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): Airplane Multi-engine; Airplane Single-engine; Instrument Airplane
Toxicology Performed: No
Medical Certification: Class 3 With Waivers/Limitations
Last FAA Medical Exam: 06/13/2017
Occupational Pilot: No
Last Flight Review or Equivalent: 07/08/2017
Flight Time: 3128 hours (Total, all aircraft), 5 hours (Total, this make and model), 2951 hours (Pilot In Command, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Make: CESSNA
Registration: N9972A
Model/Series: 170 A
Aircraft Category: Airplane
Year of Manufacture: 1950
Amateur Built:No
Airworthiness Certificate: Normal
Serial Number: 19553
Landing Gear Type: Tailwheel
Seats: 4
Date/Type of Last Inspection: 01/07/2017, Annual
Certified Max Gross Wt.: 2200 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 3272 Hours at time of accident
Engine Manufacturer: CONT MOTOR
ELT: C91 installed, not activated
Engine Model/Series: C145 SERIES
Registered Owner: MOFFET JEFF C
Rated Power: 145 hp
Operator:On file
Operating Certificate(s) Held: None
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KPNC, 1000 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time: 1100 CST
Direction from Accident Site: 340°
Lowest Cloud Condition: Clear
Visibility: 10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 10 knots /
Turbulence Type Forecast/Actual:
Wind Direction: 100°
Turbulence Severity Forecast/Actual:
Altimeter Setting: 30.37 inches Hg
Temperature/Dew Point: -1°C / -10°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Ponca City, OK (PNC)
Type of Flight Plan Filed: None
Destination: Enid, OK (WDG)
Type of Clearance: None
Departure Time: 1140 CST
Type of Airspace:
Airport Information
Airport: PONCA CITY RGNL (PNC)
Runway Surface Type: Concrete
Airport Elevation: 1008 ft
Runway Surface Condition:
Runway Used: 35
IFR Approach: None
Runway Length/Width: 7201 ft / 150 ft
VFR Approach/Landing: None
Wreckage and Impact Information
Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 3 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 4 None
Latitude, Longitude: 36.731944, -97.099722 (est)
Wind Components
Photographs of fractured pieces of the right main landing gear leg.
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