Aircraft Accident/Incident Report

Minersville, Utah 84752
Tuesady, December 11, 2007 9:30 MST

NTSB Narrative Summary Released at Completion of Accident

The non-instrument rated private pilot seated in the left seat and the airline transport pilot seated in the right seat, were approximately 30 minutes from the intended destination when the single-engine airplane collided with mountainous terrain at the approximate 7,000 foot level. The visual flight rules (VFR) cross-country flight originated in day VFR conditions approximately 2 hours and 10 minutes prior to the accident. Marginal weather conditions, to include snow showers and reduced visibilities, were reported in the area during the time frame of the accident. Search and rescue personnel reported the visibility in the area was poor and the hillside where the wreckage came to rest was not visible from the valley due to clouds. The wreckage was located on up-sloping, snow-covered terrain near the crest of a ridge line. The debris field encompassed an area approximately 570 feet in length along a magnetic heading consistent with the reported route of flight. Ground scars and wreckage signatures were also consistent with controlled flight into terrain. Post accident examination of the airplane wreckage revealed that the landing gear and wing flaps were in the up position (cruise configuration). Additional examination of the wreckage did not disclose evidence of a mechanical malfunction prior to impact. It could not be determined which of the two front seat pilots was manipulating the flight controls when the accident occurred.

NTSB Probable Cause Narrative

The flying pilot's continued flight into instrument meteorological conditions and failure to maintain adequate terrain clearance during cruise. Contributing to the accident were low clouds, reduced visibility and mountainous terrain.

Event Information

Type of Event Accident
Event Date 12/11/2007
Event Day of the Week Tuesday
Time of Event 930
Event Time Zone Mountain Standard Time
Event City Minersville
Event State UTAH
Event Country --
Zipcode of the event site 84752
Event Date Year 2007
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 380645N
Event Location Longitude 1130004W
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 923 Mountain Standard Time
Direction of event from weather observation facility (degrees) 348
Weather Observation Facility ID MLF
Elevation of weather observation facility 5093
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 3000
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 1.75
Air Temperature at event time (in degrees celsius) -6
Dew Point at event time (in degress fahrenheit) -7
Wind Direction (degrees magnetic) 10
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 11
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.1
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 3
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 3
Investigating Agency NTSB
NTSB Docket Number (internal use) 24428
NTSB Notification Source FAA-ROC
NTSB Notification Date Dec 11 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 30 2008 5:49PM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office Salt Lake City, Utah

Aircraft Involved

Aircraft #1

Aircraft Registration Number N364KW
NTSB Number SEA08FA045
Missing Aircraft Indicator Y
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BEECH
Aircraft Model A36TC
Aircraft Series Identifier --
Aircraft Serial Number EA-215
Certified Max Gross Weight 3650
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats 4
Total number of seats on the aircraft 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 1 2007 12:00AM
Airframe hours since last inspection --
Airframe Hours 2175
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type Unknown
Aircraft Owner Name Galen D. Nelson
Aircraft Owner Street Address --
Aircraft Owner City Rigby
Aircraft Owner State ID
Aircraft Owner Country USA
Aircraft Owner Zipcode 83442
Operator is an individual? Yes
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 USA
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 Yes
Departure Point Same as Event No
Departure Airport Code IDA
Departure City IDAHO FALLS
Departure State ID
Departure Country USA
Departure Time 720
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code SGU
Destination City ST GEORGE
Destination State UT
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 30 2008 5:48PM
User who most recently changed record stam
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --