Aircraft Accident/Incident Report

Koyukuk, Alaska 99754
Tuesady, February 15, 2005 13:00 AST

NTSB Narrative Summary Released at Completion of Accident

After taxiing to the north end of a remote, snow-covered lake that was 3,000 feet long, the private certificated pilot took off in a ski-equipped airplane. The pilot said the snow was about 5 feet deep, and the temperature was about 40 degrees F, making the snow conditions sticky. He indicated that his departure was toward the south, and the wind was from the south, about 10 knots. He applied full engine power and began the takeoff run, which was initially slow until the skis of the airplane dropped into previously compacted ski tracks. The airplane lifted off from the snow near the south end of the lake, and climbed to about 5 feet above the snow. The pilot said he began a gentle left turn in an attempt to avoid spruce trees at the south end of the lake, but the left wingtip of the airplane brushed the snow, pulling the airplane slightly left and slowing the climb. The pilot said he knew the airplane would not clear the trees, and he landed the airplane in deep snow. The airplane rapidly decelerated and nosed down. It received structural damage to the right wing and right main landing gear.

NTSB Probable Cause Narrative

The pilot's selection of unsuitable terrain for takeoff, which resulted in an in flight collision with the snow during takeoff initial climb. A factor contributing to the accident was soft snow conditions.

Event Information

Type of Event Accident
Event Date 2/15/2005
Event Day of the Week Tuesday
Time of Event 1300
Event Time Zone Atlantic Standard Time
Event City Koyukuk
Event State ALASKA
Event Country --
Zipcode of the event site 99754
Event Date Year 2005
Event Date Month 2
MidAir Collision Indicator --
On Ground Collision occurred ? --
Event Location Latitude 651824N
Event Location Longitude 1573949W
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 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 --
Lowest Non-Ceiling Height 1500
Sky/Lowest/Cloud Conditions Scattered
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) 4
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
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 --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 18716
NTSB Notification Source FAA FAI FSDO
NTSB Notification Date Feb 16 2005 12:00AM
NTSB Notification Time 810
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 20 2005 6:27AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-AL-FAI FSDO 01

Aircraft Involved

Aircraft #1

Aircraft Registration Number N86911
NTSB Number ANC05LA035
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bellanca
Aircraft Model 8GCBC
Aircraft Series Identifier --
Aircraft Serial Number 25-74
Certified Max Gross Weight 2100
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 Annual
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name James W. Sears Jr.
Aircraft Owner Street Address --
Aircraft Owner City Galena
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99741
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 --
Departure City Koyukuk
Departure State AK
Departure Country USA
Departure Time 1300
Departure Time Zone AST
Destination Same as Local Flt --
Destination Airport Code PAGA
Destination City Galena
Destination State --
Destination Country --
Specific Phase of Flight Takeoff - initial climb
Report sent to ICAO? No
Evacuation occurred --
Date of most recent change to record Sep 20 2005 2:57PM
User who most recently changed record PETL
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --