Aircraft Accident/Incident Report

Beluga, Alaska 99695
Friday, September 23, 2011 10:30 AKD

NTSB Narrative Summary Released at Completion of Accident

The pilot elected to take off uphill from a remote site due to a light wind coming down the slope. He said that during the takeoff roll, the airplane hit a bump and became airborne prematurely. The airplane was unable to outclimb the rising terrain and vegetation. After the main landing gear encountered high vegetation, the airplane slowed, impacted terrain, and nosed over, sustaining substantial damage to the wings. There were no mechanical problems with the airplane prior to the accident.

NTSB Probable Cause Narrative

The pilot's decision to take off uphill into rising terrain.

Event Information

Type of Event Accident
Event Date 9/23/2011
Event Day of the Week Friday
Time of Event 1030
Event Time Zone --
Event City Beluga
Event State ALASKA
Event Country --
Zipcode of the event site 99695
Event Date Year 2011
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 611119N
Event Location Longitude 1514323W
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) 50
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 350
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 29253
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 Dec 15 2011 11:18AM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N78564
NTSB Number ANC11CA106
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-12
Aircraft Series Identifier --
Aircraft Serial Number 12-3939
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 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 6 2010 12:00AM
Airframe hours since last inspection --
Airframe Hours 3797
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type C91-A
Aircraft Owner Name KNUTSON TAD T
Aircraft Owner Street Address --
Aircraft Owner City SOLDOTNA
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99669
Operator is an individual? No
Operator Name KNUTSON TAD T
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City SOLDOTNA
Operator State AK
Operator Country USA
Operator Zip code 99669
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 Beluga
Departure State AK
Departure Country USA
Departure Time 1030
Departure Time Zone ADT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Beluga
Destination State AK
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 9 2011 4:35PM
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 --