Private Airport
Aircraft Accident/Incident Report

Roberts, Montana 59070
Sunday, December 29, 2013 12:30 MST

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that he landed at a private snow covered airstrip. After landing, while taxiing to parking, the right main landing gear broke through the snow crust and the airplane flipped inverted, which substantially damaged the vertical stabilizer. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

NTSB Probable Cause Narrative

The pilot's selection of unsuitable terrain during taxi, which resulted in a loss of directional control.

Event Information

Type of Event Accident
Event Date 12/29/2013
Event Day of the Week Sunday
Time of Event 1230
Event Time Zone Mountain Standard Time
Event City Roberts
Event State MONTANA
Event Country --
Zipcode of the event site 59070
Event Date Year 2013
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 452636N
Event Location Longitude 1091430W
Event Location Airport Private
Event Location Nearest Airport ID None
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 4380
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1253 Mountain Standard Time
Direction of event from weather observation facility (degrees) 50
Weather Observation Facility ID BIL
Elevation of weather observation facility 3560
Distance of event from weather observation facility (units?) 36
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) -1
Dew Point at event time (in degress fahrenheit) -9
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.97
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 32446
NTSB Notification Source FAA AMN Regional Operations Ce
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Mar 3 2014 7:03PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N924JS
NTSB Number WPR14CA082
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire Unknown
Aircraft Explosion Unknown
Aircraft Manufacturer's Full Name CUBCRAFTERS INC
Aircraft Model CC11-160
Aircraft Series Identifier --
Aircraft Serial Number CC11-00253
Certified Max Gross Weight 1320
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection Feb 6 2013 12:00AM
Airframe hours since last inspection 100
Airframe Hours 100
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type Unknown
Aircraft Owner Name N9FX LLC
Aircraft Owner Street Address 388 State St
Aircraft Owner City Salem
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97301
Operator is an individual? Yes
Operator Name Gerald Nelson
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Auburn
Operator State CA
Operator Country USA
Operator Zip code 95604
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code RED
Departure City Red Lodge
Departure State MT
Departure Country USA
Departure Time 1215
Departure Time Zone MST
Destination Same as Local Flt crash at destination city
Destination Airport Code None
Destination City Roberts
Destination State MT
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 3 2014 7:03PM
User who most recently changed record coos
Since inspection or accident --
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --