Aircraft Accident/Incident Report

Willow, Alaska 99688
Saturday, December 20, 2008 15:15 AST

NTSB Narrative Summary Released at Completion of Accident

The airline transport pilot was taking off from a snow-covered private airstrip in a tailwheel and ski-equipped airplane for a personal cross-country flight under 14 Code of Federal Regulations Part 91. In a written statement dated January 5, 2009, the pilot reported that during the takeoff roll the airplane's engine appeared to hesitate and possibly lose power. He said that he aborted the takeoff, but due to rough terrain he was unable to get the tail of the airplane back on the ground quickly to slow the airplane. When the airplane's tail did come down, the fuselage struck a low tree, resulting in substantial damage to the tail section.

NTSB Probable Cause Narrative

A partial loss of engine power during takeoff, which prevented the airplane from reaching takeoff airspeed, resulting in an aborted takeoff, and an on-ground collision with a tree.

Event Information

Type of Event Accident
Event Date 12/20/2008
Event Day of the Week Saturday
Time of Event 1515
Event Time Zone Atlantic Standard Time
Event City Willow
Event State ALASKA
Event Country --
Zipcode of the event site 99688
Event Date Year 2008
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 613326N
Event Location Longitude 1505123W
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 --
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) -7
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 --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.88
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 25029
NTSB Notification Source FAA Anchorage, ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Feb 13 2009 1:13PM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4131Z
NTSB Number ANC09CA014
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 PIPER
Aircraft Model PA-18-150
Aircraft Series Identifier --
Aircraft Serial Number 18-8201
Certified Max Gross Weight 1750
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 Apr 10 2008 12:00AM
Airframe hours since last inspection --
Airframe Hours 4489
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MACARTHUR CLINTON W
Aircraft Owner Street Address --
Aircraft Owner City ANCHORAGE
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99501-5722
Operator is an individual? No
Operator Name MACARTHUR CLINTON W
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City ANCHORAGE
Operator State AK
Operator Country USA
Operator Zip code 99501-5722
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 No
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Willow
Departure State AK
Departure Country USA
Departure Time 1515
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code LHD
Destination City Anchorage
Destination State AK
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 13 2009 1:09PM
User who most recently changed record stam
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --