Aircraft Accident/Incident Report

Skwentna, Alaska 99667
Monday, December 17, 2012 11:50 AST

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that when he departed, about 50 minutes before the accident, the wind was “light out of the north, northwest." As he continued the flight, the wind became variable southwest to northeast. Once he reached his destination, an off-airport snow-covered site, landing the wheel/ski-equipped airplane required a correction for a right quartering headwind that was gusting 20 to 25 knots. During the approach, about 20 to 25 feet above the site, the wind shifted to a tailwind. The airplane landed hard in a three-point attitude. A postaccident inspection of the airplane revealed structural damage to the empennage. There were no reported preaccident malfunctions or failures with the airplane that would have precluded normal operation.

NTSB Probable Cause Narrative

The pilot's loss of control while landing in gusting wind conditions.

Event Information

Type of Event Accident
Event Date 12/17/2012
Event Day of the Week Monday
Time of Event 1150
Event Time Zone Atlantic Standard Time
Event City Skwentna
Event State ALASKA
Event Country --
Zipcode of the event site 99667
Event Date Year 2012
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 615835N
Event Location Longitude 1520403W
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 1045 Atlantic Standard Time
Direction of event from weather observation facility (degrees) 70
Weather Observation Facility ID PASW
Elevation of weather observation facility 148
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation AST
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) -18
Dew Point at event time (in degress fahrenheit) -19
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) --
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Gusting
Wind Gust (knots) 25
Altimeter Setting at event time (in. Hg) 29.41
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 31036
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 5 2013 5:19PM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N121KT
NTSB Number ANC13CA018
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name DEHAVILLAND
Aircraft Model DHC-2 MK. I(L20A)
Aircraft Series Identifier --
Aircraft Serial Number 1407
Certified Max Gross Weight --
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 8
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 1 2012 12:00AM
Airframe hours since last inspection --
Airframe Hours 14901
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type C126
Aircraft Owner Name RUSTAIR INC
Aircraft Owner Street Address --
Aircraft Owner City ANCHORAGE
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99519-0867
Operator is an individual? No
Operator Name RUSTAIR INC
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 99519-0867
Operator Code ERHA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number ERHA673D
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 Z41
Departure City Anchorage
Departure State AK
Departure Country USA
Departure Time 1100
Departure Time Zone AST
Destination Same as Local Flt crash at destination city
Destination Airport Code --
Destination City Skwentna
Destination State AK
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 5 2013 5:20PM
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 --