Aircraft Accident/Incident Report

Fort Collins, Colorado 80521
Saturday, August 29, 1998 15:55 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot was returning from a cross-country flight and was observed by witnesses to enter the traffic pattern downwind at an estimated 450 feet agl and very close to the runway. One witness reported that when the aircraft turned base it 'appeared to be a kind of wing-over maneuver.' Another witness said that he 'turned left to the base leg of an approach to runway 11, and [he] quickly increased the bank so that in less than five seconds I could see a full plan view of the airplane at an altitude of approximately 200 feet.' Post-accident investigation indicated that the airplane's bank angle was approximately 30 degrees to the left and 30 degrees nose down upon ground impact. The airport (elevation 4,935 feet, density altitude 7,844 feet) had a local published traffic pattern altitude of 800 feet agl. Post-accident examination of the airplane's altimeter revealed a Kollsman Window setting of 29.96 inches. The closest recorded weather station (7 nautical miles distant and 81 feet above the destination airport elevation) was reporting a barometric pressure of 30.21 inches of mercury. The pilot's altimeter read approximately 250 feet higher than the airplane's actual altitude.

NTSB Probable Cause Narrative

The pilot's inadvertent stall/mush due to his excessive angle of bank during his traffic pattern turn to base. Factors were the pilot's improper downwind altitude, the pilot not properly setting his Kollsman Window in his altimeter, and the high density altitude.

Event Information

Type of Event Accident
Event Date 8/29/1998
Event Day of the Week Saturday
Time of Event 1555
Event Time Zone Mountain Daylight Time
Event City FORT COLLINS
Event State COLORADO
Event Country --
Zipcode of the event site 80521
Event Date Year 1998
Event Date Month 8
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1556 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 165
Weather Observation Facility ID FNL
Elevation of weather observation facility 5016
Distance of event from weather observation facility (units?) 7
Time Zone of the weather observation MDT
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) 10
Air Temperature at event time (in degrees celsius) 32
Dew Point at event time (in degress fahrenheit) 4
Wind Direction (degrees magnetic) 140
Variable Wind Indicator Unknown
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 7844
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1540
NTSB Notification Source --
NTSB Notification Date Aug 29 1998 12:00AM
NTSB Notification Time 2203
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:41AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N377X
NTSB Number FTW98FA378
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 Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Mooney
Aircraft Model M20F
Aircraft Series Identifier M20F
Aircraft Serial Number 670360
Certified Max Gross Weight 2740
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 Mar 12 1998 12:00AM
Airframe hours since last inspection 17
Airframe Hours 1053
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name R.C. FUGATE ENTERPRISES
Aircraft Owner Street Address 4113 HARBOR WALK DR.
Aircraft Owner City FT. COLLINS
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 80525
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
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 CDR
Departure City CHADRON
Departure State NE
Departure Country
Departure Time 1345
Departure Time Zone MDT
Destination Same as Local Flt crash at destination city
Destination Airport Code 3V5
Destination City
Destination State CO
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --