Kelso Valley Ranch Airport
Aircraft Accident/Incident Report

Mojave, California 93505
Saturday, August 31, 1991 15:30 PDT

NTSB Narrative Summary Released at Completion of Accident

WHILE PARTICIPATING IN A GLIDER CONTEST, THE PILOT TRAVELED FOR 17 NAUTICAL MILES AND REACHED THE FIRST TURN POINT IN THE SPECIFIED TRIANGULAR COURSE. THE GLIDER PILOT WAS LOW, AND THE PILOT ATTEMPTED TO LAND AT A NEARBY AIRSTRIP. WITNESSES REPORTED OBSERVING THE GLIDER FLYING DOWNWIND AT 50 TO 100 FEET ABOVE THE GROUND. WHEN THE GLIDER TURNED TOWARD THE APPROACH END OF THE RUNWAY IT LOST ALTITUDE AND COLLIDED WITH A DIRT BERM ON THE EDGE OF THE RUNWAY. THE DESCRIPTION OF THE GLIDER'S FLIGHT PATH WAS BASED UPON WITNESS STATEMENTS. THE PILOT HAD NO MEMORY OF THE ACCIDENT FLIGHT.

NTSB Probable Cause Narrative

THE GLIDER PILOT'S INADEQUATE ALTITUDE TO CLEAR TERRAIN. FACTORS WHICH RELATED TO THE PILOT BEING LOW COULD NOT BE ESTABLISHED BECAUSE THE PILOT HAD NO MEMORY OF THE ACCIDENT, AND NO WITNESSES WERE IDENTIFIED WHO OBSERVED THE GLIDER OTHER THAN DURING ITS FINAL FEW SECONDS OF FLIGHT.

Event Information

Type of Event Accident
Event Date 8/31/1991
Event Day of the Week Saturday
Time of Event 1530
Event Time Zone Pacific Daylight Time
Event City MOJAVE
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93505
Event Date Year 1991
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport KELSO VALLEY RANCH
Event Location Nearest Airport ID 77L
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 1
Degrees magnetic from airport --
Airport Elevation 4071
Weather Briefing Completeness Not pertinent
Investigator's weather source Pilot
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 10000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 40
Air Temperature at event time (in degrees celsius) 46
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 15
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
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) 2264
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 45360
Date of most recent change to record Dec 12 2000 10:39AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N901DH
NTSB Number LAX91LA378
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 SCHEMPP-HIRTH
Aircraft Model VENTUS-B
Aircraft Series Identifier VENTUS-B
Aircraft Serial Number 151
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 1
Number of Engines --
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection Jan 2 2000 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name HUTCHINSON FAMILY TRUST
Aircraft Owner Street Address 26737 W. LATIGO SH. DRIVE
Aircraft Owner City MALIBU
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 90265
Operator is an individual? --
Operator Name HUTCHINSON FAMILY TRUST
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 26737 W. LATIGO SH. DRIVE
Operator City MALIBU
Operator State CA
Operator Country
Operator Zip code 90265
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 L71
Departure City CALIFORNIA CITY
Departure State CA
Departure Country
Departure Time 1400
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
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 18
Runway Length 3000
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --