Carson Field Airport
Aircraft Accident/Incident Report

Kalispell, Montana 58901
Saturday, April 4, 2009 15:21 MDT

NTSB Narrative Summary Released at Completion of Accident

The airplane used for the skydiving operation was equipped with a foot step just above the right wheel, which the skydivers used to launch from the airplane. As the last of four skydivers stepped on the foot step, the right main landing gear fell away. The pilot reported that after he flew around for about 1 1/2 hours to burn off fuel, he intended to perform a low pass over the runway before coming around to land. The carburetor heat was turned on during the descent and, as he applied power to go around at midfield, the engine sputtered and lost partial power. The airplane was about 20 feet above ground level and he was able to maintain that altitude past the runway end before landing off the runway surface on snowy terrain. The airplane subsequently nosed over and came to rest inverted, sustaining substantial damage to both wings and the empennage. The carburetor heat was found in the “off” position; however, the investigation did not determine if the pilot turned off the carburetor heat or if it was pushed in by impact forces. Examination of the main landing gear revealed a fracture originating at the forward upper surface spring. The fracture surface displayed features indicative of fatigue cracking; the depth of the cracking was approximately 0.11 inches. An examination of the engine and carburetor revealed no anomalies that could account for the loss of partial power. The meteorological conditions were not conducive to carburetor icing.

NTSB Probable Cause Narrative

A partial loss of engine power during a go-around for undetermined reasons. Contributing to the accident was a fatigue failure of the right main landing gear spring.

Event Information

Type of Event Accident
Event Date 4/4/2009
Event Day of the Week Saturday
Time of Event 1521
Event Time Zone Mountain Daylight Time
Event City Kalispell
Event State MONTANA
Event Country --
Zipcode of the event site 58901
Event Date Year 2009
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 481838N
Event Location Longitude 1141523W
Event Location Airport Carson Field Airport
Event Location Nearest Airport ID MT53
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport --
Airport Elevation 3550
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1455 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 40
Weather Observation Facility ID GPI
Elevation of weather observation facility 2977
Distance of event from weather observation facility (units?) 30
Time Zone of the weather observation MDT
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) 9
Dew Point at event time (in degress fahrenheit) -7
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) 30
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) 28077
NTSB Notification Source Simpson, NTSB
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Mar 15 2011 5:22PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6433A
NTSB Number WPR09LA179
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 CESSNA
Aircraft Model 182
Aircraft Series Identifier --
Aircraft Serial Number 33233
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 6859
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Fred Sand
Aircraft Owner Street Address --
Aircraft Owner City Marion
Aircraft Owner State MT
Aircraft Owner Country USA
Aircraft Owner Zipcode 59925
Operator is an individual? No
Operator Name Fred Sand
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Marion
Operator State MT
Operator Country USA
Operator Zip code 59925
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) Skydiving
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code S27
Departure City Kalispell
Departure State MT
Departure Country USA
Departure Time 1330
Departure Time Zone MDT
Destination Same as Local Flt crash at destination city
Destination Airport Code MT53
Destination City Kalispell
Destination State MT
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 15 2011 5:22PM
User who most recently changed record coos
Since inspection or accident --
Event Location Runway Number and Location 14
Runway Length 3660
Runway Width 40
Sight Seeing flight No
Air Medical Flight No
Medical Flight --