Buena Vista Airport
Aircraft Accident/Incident Report

Buena Vista, Colorado 81211
Friday, September 15, 1989 18:30 MDT

NTSB Narrative Summary Released at Completion of Accident

THE PLT WAS GIVING A PASSENGER A GLIDER RIDE. THE FLT WAS LAUNCHED FROM A 9000 FT RWY (RWY 15) WITH AN AUTO TOW IN WIND THAT WAS FROM 300 DEG AT 4 KTS. A WITNESS RPRTD THE INITIAL CLIMB AFTER TAKEOFF SEEMED NORMAL UNTIL THE PLT RELEASED THE GLIDER AT ABOUT 300 FT AGL. THE PLT THEN BEGAN A LEVEL LEFT TURN WITH INCREASING BANK. SUBSEQUENTLY, THE GLIDER PITCHED DOWN & CRASHED AFTER COMPLETING ABOUT 300 DEG OF TURN. IMPACT OCCURRED ON AN INCLINED BANK AS THE GLIDER WAS IN AN EXTREME NOSE DOWN ATTITUDE.

NTSB Probable Cause Narrative

A PREMATURE RELEASE OF THE GLIDER TOW LINE BY THE GLIDER PILOT AND HIS FAILURE TO MAINTAIN SUFFICIENT AIRSPEED, WHILE MANEUVERING BACK TOWARD THE RUNWAY, WHICH RESULTED IN AN INADVERTENT STALL.

Event Information

Type of Event Accident
Event Date 9/15/1989
Event Day of the Week Friday
Time of Event 1830
Event Time Zone Mountain Daylight Time
Event City BUENA VISTA
Event State COLORADO
Event Country --
Zipcode of the event site 81211
Event Date Year 1989
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport BUENA VISTA
Event Location Nearest Airport ID 7V1
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 7940
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) 30
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Unknown
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 6
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
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 1
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1500
NTSB Notification Source --
NTSB Notification Date Sep 15 1989 12:00AM
NTSB Notification Time 2056
Fiche Number and/or location -used to find docket information 39845
Date of most recent change to record Dec 13 2000 1:03PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3458
NTSB Number DEN89LA210
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 LET
Aircraft Model L-13
Aircraft Series Identifier L-13
Aircraft Serial Number 174216
Certified Max Gross Weight 1102
Aircraft Category Glider
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 2
Number of Engines 0
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 13 1989 12:00AM
Airframe hours since last inspection 30
Airframe Hours 680
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ROBIN M GIBBS
Aircraft Owner Street Address P.O. BOX 1806
Aircraft Owner City BUENA VISTA
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 81211
Operator is an individual? --
Operator Name CHUCK GIBBS
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address PO BOX 1806
Operator City BUENA VISTA
Operator State CO
Operator Country
Operator Zip code 81211
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 Yes
Departure Airport Code 7V1
Departure City
Departure State
Departure Country
Departure Time 1825
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 7V1
Destination City
Destination State
Destination Country
Specific Phase of Flight Descent
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 15
Runway Length 9000
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --