Aircraft Accident/Incident Report

Ennis, Montana 59729
Monday, August 7, 1995 8:00 MDT

NTSB Narrative Summary Released at Completion of Accident

WHILE ON APPROACH TO A PRIVATE AIRPORT THE PILOT NOTED THUNDERSTORM CLOUDS AND VIRGA FROM THE ASSOCIATED CLOUD BASES. HE CONTINUED HIS APPROACH AND WHEN APPROXIMATELY 1/4 MILE ON FINAL ENCOUNTERED A STRONG DOWNDRAFT AND THE AIRCRAFT'S GROUND SPEED DROPPED OFF RAPIDLY. THE AIRCRAFT DESCENDED VERTICALLY IMPACTING THE GROUND AND INCURRING SUBSTANTIAL DAMAGE.

NTSB Probable Cause Narrative

THE PILOT-IN-COMMAND'S INACCURATE WEATHER EVALUATION AND CONTINUED FLIGHT INTO ADVERSE WEATHER. THE MICROBURST WAS A FACTOR.

Event Information

Type of Event Accident
Event Date 8/7/1995
Event Day of the Week Monday
Time of Event 800
Event Time Zone Mountain Daylight Time
Event City ENNIS
Event State MONTANA
Event Country --
Zipcode of the event site 59729
Event Date Year 1995
Event Date Month 8
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 Weather Observation Facility
Time of the weather observation 756 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 25
Weather Observation Facility ID BZN
Elevation of weather observation facility 4474
Distance of event from weather observation facility (units?) 35
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
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 5
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1155
NTSB Notification Source --
NTSB Notification Date Aug 7 1995 12:00AM
NTSB Notification Time 805
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:31PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N777FN
NTSB Number SEA95LA173
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 TU206F
Aircraft Series Identifier TU206F
Aircraft Serial Number U20602832
Certified Max Gross Weight 3600
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 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 12 1995 12:00AM
Airframe hours since last inspection 150
Airframe Hours 3890
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name SINGLETON, JAMES, L.
Aircraft Owner Street Address PO BOX 434
Aircraft Owner City ENNIS
Aircraft Owner State MT
Aircraft Owner Country
Aircraft Owner Zipcode 59729
Operator is an individual? --
Operator Name IVERSON, PAUL, E.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 405 8TH STREET
Operator City BELGRADE
Operator State MT
Operator Country
Operator Zip code 59714
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 Yes
Departure Airport Code S55
Departure City
Departure State
Departure Country
Departure Time 740
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
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 --