Aircraft Accident/Incident Report

Wibaux, Montana 59353
Wednesday, December 18, 1985 16:30 MST

NTSB Narrative Summary Released at Completion of Accident

THE PLT STATED THAT LIGHT SNOW WAS FALLING AT THE ARPT AT THE TIME OF DEPARTURE. THE PAX STATED AFTER THE ACCIDENT THAT THE PLT ENCOUNTERED CLOUDS AT THEIR CRUISE ALT OF ABOUT 6000 FT. HE CONTINUED TO STATE THAT THE ACFT MADE A SHALLOW DESCENT AT FIRST ENCOUNTER WITH THE CLOUDS BUT BECAME VERY STEEP SEVERAL TIMES DURING THE DESCENT. THE ACFT BROKE OUT OF THE CLOUDS AND IMPACTED THE SNOW COVERED FIELD AT A HIGH RATE OF DESCENT AND AIRSPEED. THE PLT DID NOT PERFORM A PREFLIGHT INSPECTION OF THE ACFT, HE DID NOT DEICE THE ACFT PRIOR TO DEPARTURE AND HE DOES NOT HOLD AN INSTRUMENT RATING.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 12/18/1985
Event Day of the Week Wednesday
Time of Event 1630
Event Time Zone Mountain Standard Time
Event City WIBAUX
Event State MONTANA
Event Country --
Zipcode of the event site 59353
Event Date Year 1985
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Dusk
Lowest Ceiling Height 1200
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 2
Air Temperature at event time (in degrees celsius) -2
Dew Point at event time (in degress fahrenheit) -4
Wind Direction (degrees magnetic) 330
Variable Wind Indicator Unknown
Wind Speed (knots) 20
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 30
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Light
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 2552
NTSB Notification Source --
NTSB Notification Date Dec 18 1985 12:00AM
NTSB Notification Time 1950
Fiche Number and/or location -used to find docket information 30058
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N24198
NTSB Number DEN86LA050
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BEECH
Aircraft Model V-35B
Aircraft Series Identifier V-35B
Aircraft Serial Number D10112
Certified Max Gross Weight 3400
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 13 1985 12:00AM
Airframe hours since last inspection 187
Airframe Hours 1465
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name WILLIAM HART
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address RT 1 BOX 2492
Operator City LAUREL
Operator State MT
Operator Country
Operator Zip code 59044
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
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) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 2OU
Departure City BEECH
Departure State ND
Departure Country
Departure Time 1620
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code B1L
Destination City BILLINGS
Destination State MT
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --