Aircraft Accident/Incident Report

Winnett, Montana 59087
Tuesady, June 12, 2012 20:34 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that he recently purchased the accident airplane, which had previously been in storage. Before he departed, the airplane’s fuel tanks were filled and a preflight check revealed no contaminants. During the night flight, the pilot switched fuel tanks, and the engine sputtered and lost power. He attempted to restart the engine while descending toward a highway for a forced landing. After the pilot switched the fuel selector back to the original fuel tank, the engine restarted; however, moments later the airplane struck a transmission wire, which the pilot did not see until the last minute because of the dark lighting conditions. The pilot made a forced landing in a field. The pilot attributed the engine sputtering to undetected water in the fuel system; however, a postaccident examination of the fuel system revealed no contaminants, and operation of the engine showed no mechanical malfunctions or failures that would have precluded normal operation. The pilot added that he had “recently lost his wife and had not been thinking correctly.” The pilot did not have a current flight review or medical certificate.

NTSB Probable Cause Narrative

A momentary loss of engine power, which led to an emergency descent at night during which the airplane collided with a wire. The reason for the loss of engine power could not be determined because postaccident examination and operation did not reveal any anomalies that would have precluded normal operation.

Event Information

Type of Event Accident
Event Date 6/12/2012
Event Day of the Week Tuesday
Time of Event 2034
Event Time Zone Mountain Daylight Time
Event City Winnett
Event State MONTANA
Event Country --
Zipcode of the event site 59087
Event Date Year 2012
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 470043N
Event Location Longitude 1082113W
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 --
Investigator's weather source Weather Observation Facility
Time of the weather observation 2054 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 80
Weather Observation Facility ID LWT
Elevation of weather observation facility 4170
Distance of event from weather observation facility (units?) 140
Time Zone of the weather observation MDT
Lighting Conditions Dusk
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height 10000
Sky/Lowest/Cloud Conditions Thin Broken
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 8
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) 29.91
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) 31214
NTSB Notification Source FAA Comm Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Apr 17 2013 7:32PM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number CG-ZVF
NTSB Number WPR12LA263
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 A185F
Aircraft Series Identifier --
Aircraft Serial Number 185-03202
Certified Max Gross Weight 3300
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 7 2012 12:00AM
Airframe hours since last inspection 6
Airframe Hours 12159
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type C91
Aircraft Owner Name Transwest Air Limited Partnership
Aircraft Owner Street Address --
Aircraft Owner City Prince Albert
Aircraft Owner State --
Aircraft Owner Country CA
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name Robin Johnson
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Ranchester
Operator State WY
Operator Country USA
Operator Zip code 82839
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code CEN4
Departure City High River
Departure State --
Departure Country CA
Departure Time 1815
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code KBIL
Destination City Billings
Destination State MT
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 17 2013 7:32PM
User who most recently changed record stam
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --