Aircraft Accident/Incident Report

Mckinnon, Wyoming 82938
Friday, June 26, 1992 9:50 MDT

NTSB Narrative Summary Released at Completion of Accident

SHORTLY AFTER DEPARTURE RPM BEGAN DROPPING/FLUCTUATING AND THE PILOT ATTEMPTED TO REACH A NEARBY HIGHWAY TO EXECUTE A FORCED LANDING. DURING THE LANDING HE COLLIDED WITH THE TOPS OF SEVERAL SMALL TREES AND WHILE ROLLING OUT OVER UNEVEN TERRAIN THE AIRCRAFT PASSED THROUGH A FENCE AND THE NOSE LANDING GEAR STRUT SEPARATED FROM THE AIRCRAFT. POST CRASH EXAMINATION OF THE AIRCRAFT REVEALED A SUBSTANTIAL AMOUNT OF WATER IN THE FUEL DRAINED FROM THE GASCOLATOR AS WELL AS WATER IN THE PILOT'S ABOVE GROUND AUTO GAS STORAGE TANK. STANDARD CESSNA 172 PREFLIGHT PROCEDURES CALL FOR THE DRAINING OF FUEL FROM THE FUEL STRAINER TO CHECK FOR PRESENCE OF WATER AND SEDIMENT.

NTSB Probable Cause Narrative

WATER IN THE AIRCRAFT FUEL SYSTEM WHICH WAS NOT PURGED AS A RESULT OF THE PILOT IN COMMAND'S INADEQUATE PREFLIGHT. FACTORS CONTRIBUTING TO THE ACCIDENT WERE: TREES, A FENCE AND THE UNEVEN TERRAIN CONDITION DURING THE LANDING AND ROLLOUT.

Event Information

Type of Event Accident
Event Date 6/26/1992
Event Day of the Week Friday
Time of Event 950
Event Time Zone Mountain Daylight Time
Event City MCKINNON
Event State WYOMING
Event Country --
Zipcode of the event site 82938
Event Date Year 1992
Event Date Month 6
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 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 947 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 23
Weather Observation Facility ID RKS
Elevation of weather observation facility 6760
Distance of event from weather observation facility (units?) 44
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 15000
Lowest Non-Ceiling Height 9000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 60
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 3
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2409
NTSB Notification Source --
NTSB Notification Date Jun 26 1992 12:00AM
NTSB Notification Time 930
Fiche Number and/or location -used to find docket information
Date of most recent change to record Dec 11 2000 3:01PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6089A
NTSB Number SEA92LA137
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 172
Aircraft Series Identifier 172
Aircraft Serial Number 28689
Certified Max Gross Weight 2075
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 Sep 5 1989 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MITCHELL, DARRELL A.
Aircraft Owner Street Address PO BOX 145
Aircraft Owner City MANILA
Aircraft Owner State UT
Aircraft Owner Country
Aircraft Owner Zipcode 84046
Operator is an individual? --
Operator Name MITCHELL, DARRELL A.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address PO BOX 145
Operator City MANILA
Operator State UT
Operator Country
Operator Zip code 84046
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 40U
Departure City MANILA
Departure State UT
Departure Country
Departure Time 945
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 40U
Destination City
Destination State
Destination Country
Specific Phase of Flight Climb
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 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --