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NTSB Report
April 26, 1992 · Laister Nugget · N97DT
Bishop, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 26, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Bishop, CA
Aircraft
Laister Nugget
Tail Number
N97DT
Operator
Reilly John D
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX92LA192
THE PILOT OF THE GLIDER ENCOUNTERED EXTREME TURBULENCE DURING CRUISE FLIGHT. THE TURBULENCE BUCKLED THE WINGS, CRACKED THE FUSELAGE, EXTENDED THE LANDING GEAR AND RENDERED THE FLAPS INOPERATIVE. THE PILOT FAILED TO PROPERLY PLAN THE NO-FLAP LANDING APPROACH AND INADVERTENTLY RETRACTED THE LANDING GEAR. THE GLIDER OVERSHOT THE POINT OF INTENDED LANDING AND SLID INTO A RAVINE OFF THE DEPARTURE END OF THE RUNWAY.
NTSB Probable Cause
THE PILOT-IN-COMMAND'S IMPROPERLY PLANNED NO-FLAP LANDING APPROACH; FAILURE TO FOLLOW THE CHECKLIST; AND INADVERTENT GEAR RETRACTION. FACTORS CONTRIBUTING TO THE ACCIDENT WERE THE BUCKLING OF THE WING SKIN, CRACKING OF THE FUSELAGE AND THE INOPERATIVE FLAPS.
Full Narrative
THE PILOT OF THE GLIDER ENCOUNTERED EXTREME TURBULENCE DURING CRUISE FLIGHT. THE TURBULENCE BUCKLED THE WINGS, CRACKED THE FUSELAGE, EXTENDED THE LANDING GEAR AND RENDERED THE FLAPS INOPERATIVE. THE PILOT FAILED TO PROPERLY PLAN THE NO-FLAP LANDING APPROACH AND INADVERTENTLY RETRACTED THE LANDING GEAR. THE GLIDER OVERSHOT THE POINT OF INTENDED LANDING AND SLID INTO A RAVINE OFF THE DEPARTURE END OF THE RUNWAY.
Flight
Event TypeAccident
Event Time14:00 PDT
Nearest AirportBISHOP (0nm)
Runway16
Runway Length5600 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftLaister Nugget
Tail NumberN97DT
Aircraft CategoryGli
DamageSubstantial
OperatorReilly John D
Operating RulePart 91
Engines0
Engine TypeUnknown
Engine DetailsUnknown
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 41 · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility50 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO