Morgan County Airport
Aircraft Accident/Incident Report

Morgan, Utah 84050
Sunday, May 5, 1991 12:50 MDT

NTSB Narrative Summary Released at Completion of Accident

THE ACFT LIFTED OFF AFTER A SHORT TAKEOFF ROLL, CLIMBED TO ABOUT 200 FT AGL, AND THE PILOT INITIATED A STEEP DOWNWIND TURN IN STRONG WIND CONDITIONS. THE ACFT STALLED, DESCENDED NOSE DOWN, AND IMPACTED TERRAIN. THE PILOT HELD AN EXPIRED STUDENT PILOT CERTIFICATE.

NTSB Probable Cause Narrative

THE INADVERTANT STALL AND THE PILOT'S STEEP BANKED TURN. FACTORS RELATING TO THE ACCIDENT WERE THE PILOT'S LACK OF QUALIFICATION TO CONDUCT THE FLIGHT AND THE STRONG TAILWIND CONDITIONS.

Event Information

Type of Event Accident
Event Date 5/5/1991
Event Day of the Week Sunday
Time of Event 1250
Event Time Zone Mountain Daylight Time
Event City MORGAN
Event State UTAH
Event Country --
Zipcode of the event site 84050
Event Date Year 1991
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport MORGAN COUNTY
Event Location Nearest Airport ID 42U
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 0
Weather Briefing Completeness Unknown
Investigator's weather source Witness
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
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) 15
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1160
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 44197
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N134TA
NTSB Number SEA91LA098
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 RICHARD CHENEY
Aircraft Model TERATORN TIERRA II
Aircraft Series Identifier TERATORN T
Aircraft Serial Number 9473
Certified Max Gross Weight 600
Aircraft Category Ultralight
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Sep 5 1986 12:00AM
Airframe hours since last inspection 72
Airframe Hours 135
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name EDWARD R. OLSON
Aircraft Owner Street Address 145 W. 9TH ST.
Aircraft Owner City OGDEN
Aircraft Owner State UT
Aircraft Owner Country
Aircraft Owner Zipcode 84404
Operator is an individual? --
Operator Name EDWARD R. OLSON
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 145 W. 9TH ST.
Operator City OGDEN
Operator State UT
Operator Country
Operator Zip code 84404
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 42U
Departure City MORGAN
Departure State UT
Departure Country
Departure Time 1250
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 Takeoff
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 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --