Tuesday, November 19, 2019

Collision During Landing: Porterfield CP-65, N37716; accident occurred February 23, 2019 in Aberdeen, Brown County, South Dakota

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Rapid City, South Dakota

Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms


Location: Aberdeen, SD
Accident Number: GAA19CA147 
Date & Time: 02/23/2019, 1430 CST
Registration: N37716
Aircraft: Porterfield CP 65
Aircraft Damage: Substantial
Defining Event: Collision during takeoff/land
Injuries: 1 Minor, 1 None
Flight Conducted Under: Part 91: General Aviation - Personal


The pilot reported that, during a touch-and-go landing on a frozen lake, the airplane struck a "drift of deep snow" and came to rest inverted. He added that he did not see the snow drift before landing.

The airplane sustained substantial damage to the right wing and empennage.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot's selection of unsuitable terrain for landing, which resulted in a nose-over.


Personnel issues
Decision making/judgment - Pilot (Cause)

Environmental issues
Snow/slush/ice covered surface - Effect on operation (Cause)

Factual Information

History of Flight

Collision during takeoff/land (Defining event)
Roll over

Pilot Information

Certificate: Flight Instructor; Commercial
Age: 65, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Front
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 2 With Waivers/Limitations
Last FAA Medical Exam: 05/01/2018
Occupational Pilot: Yes
Last Flight Review or Equivalent: 06/17/2017
Flight Time:  (Estimated) 10375 hours (Total, all aircraft), 150 hours (Total, this make and model), 10275 hours (Pilot In Command, all aircraft), 45 hours (Last 90 days, all aircraft), 15 hours (Last 30 days, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: Porterfield
Registration: N37716
Model/Series: CP 65 No Series
Aircraft Category: Airplane
Year of Manufacture: 1941
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 945
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 10/23/2018, Annual
Certified Max Gross Wt.: 1200 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 3609 Hours as of last inspection
Engine Manufacturer: Continental
ELT: Installed, activated, did not aid in locating accident
Engine Model/Series: A65-8
Registered Owner: Hub City Flying Club Inc
Rated Power: 65 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: KABR, 1300 ft msl
Distance from Accident Site: 10 Nautical Miles
Observation Time: 2053 CST
Direction from Accident Site: 123°
Lowest Cloud Condition: Clear
Lowest Ceiling:
Visibility (RVR):
Wind Speed/Gusts: 8 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 350°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.87 inches Hg
Temperature/Dew Point: -7°C / -11°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Aberdeen, SD (ABR)
Type of Flight Plan Filed: None
Destination: Aberdeen, SD (ABR)
Type of Clearance: None
Departure Time: 1400 CST
Type of Airspace: Class G

Wreckage and Impact Information

Crew Injuries: 1 Minor
Aircraft Damage: Substantial
Passenger Injuries: 1 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Minor, 1 None
Latitude, Longitude: 45.534722, -98.613056 (est)

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