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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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August 31, 1991 · Schempp-Hirth Ventus-B · N901DH

Mojave, CA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
August 31, 1991
Injury Outcomes
1 injury (1 serious injury)
Location
Mojave, CA
Aircraft
Schempp-Hirth Ventus-B
Tail Number
N901DH
Operator
Hutchinson Family Trust
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
LAX91LA378

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

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.

Full Narrative

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.

Flight

Event TypeAccident
Event Time15:30 PDT
Nearest AirportKelso Valley Ranch (1nm)
Runway18
Runway Length3000 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftSchempp-Hirth Ventus-B
Tail NumberN901DH
Aircraft CategoryGli
DamageDestroyed
OperatorHutchinson Family Trust
Operating RulePart 91
Engine TypeUnknown
Engine DetailsNone · NONE · Unknown
Seats1

People & Injuries

Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 65 · None

Conditions

ConditionsVMC
LightDaylight
Wind270° @ 10 kt, gusting 15 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point12 C / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data