Aircraft Accident/Incident Report

Deadhorse, Alaska 99734
Wednesday, April 25, 2001 17:50 AKD

NTSB Narrative Summary Released at Completion of Accident

The certificated airline transport pilot was conducting an aerial caribou survey, aided by radio-equipped tracking collars. He began to receive a radio signal and began a descent over the flat, featureless, snow-covered terrain, and was soon able to make visual contact with a herd of caribou. The pilot said, in part: "...as we passed over the top of the herd I made a turn to the right. The wings had just rolled level, and the airplane just came to a stop in the snow." He added that during the turn, he lost visual contact with the snow-covered terrain, and collided with the ground at a shallow angle. He reported that flat light conditions made it very difficult to discern any topographical features in the surrounding area.

NTSB Probable Cause Narrative

The pilot's failure to maintain altitude/clearance while maneuvering. Factors associated with the accident were flat light conditions, and snow-covered terrain.

Event Information

Type of Event Accident
Event Date 4/25/2001
Event Day of the Week Wednesday
Time of Event 1750
Event Time Zone --
Event City Deadhorse
Event State ALASKA
Event Country --
Zipcode of the event site 99734
Event Date Year 2001
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 690700N
Event Location Longitude 1512800W
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 Full
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height 3500
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) -16
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 11626
NTSB Notification Source ANC FAA, ROC
NTSB Notification Date Apr 25 2001 12:00AM
NTSB Notification Time 2115
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record May 21 2002 10:26AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Fairbanks FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6295H
NTSB Number ANC01LA070
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 207A
Aircraft Series Identifier --
Aircraft Serial Number 20700471
Certified Max Gross Weight 3800
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 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Apr 19 2001 12:00AM
Airframe hours since last inspection 19.1
Airframe Hours 17049.9
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name Cape Smythe Air Service, Inc.
Aircraft Owner Street Address P.O.Box 549
Aircraft Owner City Barrow
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99723
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 CSAA
Owner has at least one certificate --
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code SCC
Departure City Deadhorse
Departure State AK
Departure Country USA
Departure Time 1715
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code BRW
Destination City Barrow
Destination State AK
Destination Country USA
Specific Phase of Flight Maneuvering - turn to reverse direction
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Apr 4 2002 2:55PM
User who most recently changed record STAM
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --