Cheyenne Airport
Aircraft Accident/Incident Report

Cheyenne, Wyoming 82001
Tuesady, September 4, 1990 20:45 MDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT OF THE MOONEY M-20E LANDED GEAR-UP AFTER FAILING TO EXTEND THE LANDING GEAR AFTER BEING DISTRACTED BY OTHER AIR TRAFFIC. INVESTIGATION REVEALED THAT THE GEAR WARNING HORN WAS NOT FUNCTIONING.

NTSB Probable Cause Narrative

PILOT'S FAILURE TO EXTEND THE LANDING GEAR PRIOR TO LANDING AFTER HAVING BEEN DISTRACTED BY TRAFFIC. A MITIGATING FACTOR IN THIS ACCIDENT WAS THE FACT THAT THE GEAR WARNING HORN DID NOT FUNCTION.

Event Information

Type of Event Accident
Event Date 9/4/1990
Event Day of the Week Tuesday
Time of Event 2045
Event Time Zone Mountain Daylight Time
Event City CHEYENNE
Event State WYOMING
Event Country --
Zipcode of the event site 82001
Event Date Year 1990
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport CHEYENNE
Event Location Nearest Airport ID CYS
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 6156
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 2048 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID CYS
Elevation of weather observation facility 6156
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation MDT
Lighting Conditions Night/Bright
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) 20
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 140
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
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 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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1034
NTSB Notification Source --
NTSB Notification Date Sep 4 1990 12:00AM
NTSB Notification Time 2005
Fiche Number and/or location -used to find docket information 42473
Date of most recent change to record Dec 12 2000 5:23PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9067V
NTSB Number SEA90LA175
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 MOONEY
Aircraft Model M-20E
Aircraft Series Identifier M-20E
Aircraft Serial Number 690010
Certified Max Gross Weight 2575
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 24 1990 12:00AM
Airframe hours since last inspection 103
Airframe Hours 2246
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ROBERT A. SANDS
Aircraft Owner Street Address P.O. BOX 2356
Aircraft Owner City CHEYENNE
Aircraft Owner State WY
Aircraft Owner Country
Aircraft Owner Zipcode 82001
Operator is an individual? --
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 06
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
Departure City
Departure State
Departure Country
Departure Time 1927
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 Landing
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 12
Runway Length 6691
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --