Aircraft Accident/Incident Report

Tyonek, Alaska 99682
Saturday, October 7, 1995 14:00 AKD

NTSB Narrative Summary Released at Completion of Accident

The pilot was attempting to land on a snow covered mountain meadow. He estimated the depth of the snow to be 1 to 2 inches. Prior to landing, he attempted to drag the landing area by lightly touching the main gear on the landing surface. When the main gear touched the snow, the airplane nosed over. After exiting the airplane, the pilot noticed that the snow was 6 inches deep and very wet.

NTSB Probable Cause Narrative

Improper planning/decision by the pilot concerning his method of testing the landing area. His selection of an unsuitable area was a related factor.

Event Information

Type of Event Accident
Event Date 10/7/1995
Event Day of the Week Saturday
Time of Event 1400
Event Time Zone --
Event City TYONEK
Event State ALASKA
Event Country --
Zipcode of the event site 99682
Event Date Year 1995
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
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 Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Unknown
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1658
NTSB Notification Source --
NTSB Notification Date Oct 10 1995 12:00AM
NTSB Notification Time 922
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:38PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4463Z
NTSB Number ANC96LA004
Missing Aircraft Indicator N
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-18
Aircraft Series Identifier PA-18
Aircraft Serial Number 18-8810
Certified Max Gross Weight 1750
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 7 1995 12:00AM
Airframe hours since last inspection 32
Airframe Hours 1936
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name DENNIS L. GRIFFITH
Aircraft Owner Street Address 111 PETTIS ROAD
Aircraft Owner City ANCHORAGE
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99515
Operator is an individual? --
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? No
Certified for Part 133 or 137 Operation Unknown
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 No
Departure Airport Code LHD
Departure City ANCHORAGE
Departure State AK
Departure Country
Departure Time 1300
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code
Destination City BELUGA LAKE
Destination State AK
Destination Country
Specific Phase of Flight Other
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --