Three Cross Ranch Airport
Aircraft Accident/Incident Report

Ryegate, Montana 59067
Thursday, June 26, 2008 17:00 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that prior to departure he checked the weather and performed a preflight inspection. He observed the direction of the windsock, and stated that it favored a takeoff from runway 23. He completed an uneventful run-up, and began the takeoff roll. Halfway down the turf runway he observed the airplane's airspeed to be indicating 60 knots. He stated that at this point on the takeoff roll he expected the airspeed to have reached 70 knots. The airplane continued to accelerate to 65 knots, and with the end of the runway approaching, the pilot 'forced' the airplane airborne and retracted the landing gear. The airplane settled to the ground and then collided with trees at the end of the runway. The pilot observed the wind direction after the accident, and noted that it was out of the northeast. He opined that the airplane had encountered a sudden wind shift or downdraft during the takeoff roll.

NTSB Probable Cause Narrative

The pilot's failure to abort the takeoff when the ground roll acceleration profile was determined to be insufficient for takeoff. Contributing to the accident was the shifting wind conditions.

Event Information

Type of Event Accident
Event Date 6/26/2008
Event Day of the Week Thursday
Time of Event 1700
Event Time Zone Mountain Daylight Time
Event City Ryegate
Event State MONTANA
Event Country --
Zipcode of the event site 59067
Event Date Year 2008
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 460753N
Event Location Longitude 1092190W
Event Location Airport Three Cross Ranch Airport
Event Location Nearest Airport ID 3MT3
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0.5
Degrees magnetic from airport --
Airport Elevation 3930
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1653 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 119
Weather Observation Facility ID BIL
Elevation of weather observation facility 3930
Distance of event from weather observation facility (units?) 39
Time Zone of the weather observation MDT
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) 28
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.81
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 2
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 23973
NTSB Notification Source FAA
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jul 30 2008 9:00AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N824C
NTSB Number LAX08CA173
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Beech
Aircraft Model A36
Aircraft Series Identifier --
Aircraft Serial Number E-3338
Certified Max Gross Weight 3650
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 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Feb 1 2008 12:00AM
Airframe hours since last inspection 32.1
Airframe Hours 1060
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Jimmie N Crump
Aircraft Owner Street Address --
Aircraft Owner City Bozeman
Aircraft Owner State MT
Aircraft Owner Country USA
Aircraft Owner Zipcode 59715
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
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 Yes
Departure Airport Code 3MT3
Departure City Ryegate
Departure State MT
Departure Country USA
Departure Time 1700
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code BZN
Destination City Bozeman
Destination State MT
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 18 2008 4:24PM
User who most recently changed record COOS
Since inspection or accident Time of Accident
Event Location Runway Number and Location 23
Runway Length 2850
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --