Sunday, July 12, 2020

Loss of Control on Ground: Piper PA-18A-135 Super Cub, N60733; accident occurred July 06, 2020 at Carson Field Airport (MT53), Marion, Flathead County, Montana


Aviation Accident Final Report - National Transportation Safety Board 

The National Transportation Safety Board did not travel to the scene of this accident. 

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

Investigation Docket - National Transportation Safety Board:

Location: Marion, MT
Accident Number: WPR20CA214
Date & Time: 07/06/2020, 1145 MDT
Registration: N60733
Aircraft: Piper PA 18A-135
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal


The pilot of a tailwheel equipped airplane reported that, during the second landing, she lost control of the airplane when the tailwheel lifted due to a gust of wind. She added power, but then immediately reduced power due to the airplane drifting. The airplane subsequently departed the runway surface and collided with a fence. The airplane's left wing and forward fuselage were substantially damaged. The pilot reported 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 failure to maintain directional control of the airplane while landing in gusting wind conditions, which resulted in a runway excursion and collision with a fence.


Aircraft Directional control - Not attained/maintained
Personnel issues Aircraft control - Pilot
Environmental issues Crosswind - Effect on operation
Environmental issues Fence/fence post - Not specified

Factual Information

History of Flight

Landing-landing roll Loss of control on ground (Defining event)
Landing-landing roll Runway excursion
Landing-landing roll Collision with terr/obj (non-CFIT)

Pilot Information

Certificate: Private
Age: 70, Female
Airplane Rating(s): Single-engine Land; Single-engine Sea
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s):None 
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 With Waivers/Limitations
Last FAA Medical Exam: 07/02/2018
Occupational Pilot: No
Last Flight Review or Equivalent: 08/25/2019
Flight Time: 947 hours (Total, all aircraft), 64 hours (Total, this make and model), 764 hours (Pilot In Command, all aircraft), 9 hours (Last 90 days, all aircraft), 9 hours (Last 30 days, all aircraft), 4 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Piper
Registration: N60733
Model/Series: PA 18A-135 B
Aircraft Category: Airplane
Year of Manufacture: 1954
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 18-3366
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 11/04/2019, Annual
Certified Max Gross Wt.: 1750 lbs
Time Since Last Inspection: 3 Hours
Engines: 1 Reciprocating
Airframe Total Time: 3885.9 Hours at time of accident
Engine Manufacturer: Lycoming
ELT: C126 installed, activated, aided in locating accident
Engine Model/Series: O-320 B2C
Registered Owner: Groarke Mike
Rated Power: 165 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: MT53, 3550 ft msl
Distance from Accident Site: 1 Nautical Miles
Observation Time: 1055 MDT
Direction from Accident Site: 140°
Lowest Cloud Condition: Clear
Visibility: 10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: Calm /
Turbulence Type Forecast/Actual: None / None
Wind Direction:
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.02 inches Hg
Temperature/Dew Point: 20°C / 8°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Marion, MT (MT53)
Type of Flight Plan Filed: None
Destination: Marion, ID (MT53)
Type of Clearance: None
Departure Time: 1050 MDT
Type of Airspace: Class E

Airport Information

Airport: Carson Field Airport (MT53)
Runway Surface Type: Asphalt; Concrete
Airport Elevation: 3550 ft
Runway Surface Condition: Dry
Runway Used: 32
IFR Approach: None
Runway Length/Width: 3650 ft / 24 ft
VFR Approach/Landing: Traffic Pattern

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 48.094722, -114.851667

No comments:

Post a Comment