Aircraft Accident/Incident Report

Polson, Montana 59860
Thursday, September 4, 2003 5:58 MDT

NTSB Narrative Summary Released at Completion of Accident

The aircraft took off in dark night smoky conditions during early morning hours. The purpose of the flight is unknown and the flights destination is unknown. Prior to daylight, the aircraft collided with transmission lines about 40 feet above ground level. Three lines run between towers and the aircraft severed one line, while the remaining two lines showed signs of impact damage. The aircraft came to rest inverted below the lines. Toxicological analysis was positive for high levels of ethanol in blood (0.190%), urine (0.472%), and vitreous (0.239%). Tetrahydrocannabinol (the primary active substance in marihuana) was detected in blood. Oxazepam, a prescription tranquilizer, was detected in blood and urine.

NTSB Probable Cause Narrative

The pilot's failure to maintain clearance from an object while maneuvering and alcohol impairment. Transmission wires, dark night conditions, and drug impairment were factors.

Event Information

Type of Event Accident
Event Date 9/4/2003
Event Day of the Week Thursday
Time of Event 558
Event Time Zone Mountain Daylight Time
Event City Polson
Event State MONTANA
Event Country --
Zipcode of the event site 59860
Event Date Year 2003
Event Date Month 9
MidAir Collision Indicator --
On Ground Collision occurred ? --
Event Location Latitude 474000N
Event Location Longitude 1141300W
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 555 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 343
Weather Observation Facility ID FCA
Elevation of weather observation facility 2972
Distance of event from weather observation facility (units?) 38
Time Zone of the weather observation MDT
Lighting Conditions Night
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) 5
Air Temperature at event time (in degrees celsius) 8
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.04
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 15034
NTSB Notification Source FAA Regional Operations Center
NTSB Notification Date Sep 4 2003 12:00AM
NTSB Notification Time 754
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 2 2004 8:06AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Helena, Montana

Aircraft Involved

Aircraft #1

Aircraft Registration Number N33865
NTSB Number SEA03LA185
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 Aeronca
Aircraft Model 65-CA
Aircraft Series Identifier --
Aircraft Serial Number CA13931
Certified Max Gross Weight 1260
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 Jul 30 2002 12:00AM
Airframe hours since last inspection --
Airframe Hours 1719
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name William G. Johnson
Aircraft Owner Street Address --
Aircraft Owner City Missoula
Aircraft Owner State MT
Aircraft Owner Country USA
Aircraft Owner Zipcode 59802
Operator is an individual? No
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? --
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code S09
Departure City Hot Springs
Departure State MT
Departure Country USA
Departure Time 540
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code 8S1
Destination City Polson
Destination State MT
Destination Country USA
Specific Phase of Flight Maneuvering
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Nov 26 2003 1:29PM
User who most recently changed record STAM
Since inspection or accident Last Inspection
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --