Chamberlain Basin Airport
Aircraft Accident/Incident Report

Dixie, Idaho 83525
Thursday, April 30, 1992 15:00 MDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT ENCOUNTERED DOWNDRAFT WINDS ABOUT 25 FEET AGL DURING FINAL APPROACH FOR LANDING ON A TURF AIRSTRIP. THE AIRCRAFT DESCENDED ABRUPTLY, LANDED HARD AND NOSED OVER. THE PILOT WAS AWARE OF DOWNDRAFTS ON THE APPROACH.

NTSB Probable Cause Narrative

THE PILOT'S INADEQUATE COMPENSATION FOR THE WIND CONDITIONS. FACTORS RELATING TO THE ACCIDENT WERE THE HIGH DENSITY ATTITUDE AND THE DOWNDRAFT.

Event Information

Type of Event Accident
Event Date 4/30/1992
Event Day of the Week Thursday
Time of Event 1500
Event Time Zone Mountain Daylight Time
Event City DIXIE
Event State IDAHO
Event Country --
Zipcode of the event site 83525
Event Date Year 1992
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport CHAMBERLAIN BASIN
Event Location Nearest Airport ID U79
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 5765
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1549 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 205
Weather Observation Facility ID MYL
Elevation of weather observation facility 5023
Distance of event from weather observation facility (units?) 48
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 11000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 50
Air Temperature at event time (in degrees celsius) 13
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 250
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 5645
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) 185
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 46203
Date of most recent change to record Dec 11 2000 2:52PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8409T
NTSB Number SEA92LA086
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 CESSNA
Aircraft Model 182B
Aircraft Series Identifier 182B
Aircraft Serial Number 182B52309
Certified Max Gross Weight 2650
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 1 1991 12:00AM
Airframe hours since last inspection 40
Airframe Hours 2780
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name LEONARD, JAMES A. AND LINDA K.
Aircraft Owner Street Address 3733 STONE CREEK WAY
Aircraft Owner City BOISE
Aircraft Owner State ID
Aircraft Owner Country
Aircraft Owner Zipcode 83703
Operator is an individual? --
Operator Name LEONARD, JAMES A. AND LINDA K.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 3733 STONE CREEK WAY
Operator City BOISE
Operator State ID
Operator Country
Operator Zip code 83703
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 U70
Departure City CASCADE
Departure State ID
Departure Country
Departure Time 1415
Departure Time Zone MDT
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 25
Runway Length 4100
Runway Width 200
Sight Seeing flight No
Air Medical Flight No
Medical Flight --