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NTSB Report
April 2, 1991 · Schweizer SGS1-26-D · N7562
Warner Springs, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 2, 1991
Injury Outcomes
1 injury (1 serious injury)
Location
Warner Springs, CA
Aircraft
Schweizer SGS1-26-D
Tail Number
N7562
Operator
Willat Bert
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
LAX91LA155
THIS CERTIFICATED COMMERCIAL FIXED WING PILOT WAS PRACTICING FOR AN UPCOMING GLIDER FLIGHT TEST. HE WAS AERO TOWED FROM THE GLIDERPORT AT ABOUT 1340 HOURS. WHEN THE GLIDER DID NOT RETURN BY 1700 HOURS THE OPERATOR DISPATCHED 3 TOW AIRPLANE'S TO SEARCH FOR THE GLIDER. THE GLIDER WAS LOCATED AT ABOUT 1750 HOURS. THE PILOT TOLD THE OPERATOR THAT THE GLIDER STARTED LOSING ALTITUDE WHEN RETURNING TO THE GLINDERPORT. HE ELECTED TO FLY ALONG THE RIDGE IN HOPES OF ATTAINING ADDITIONAL THERMALS BUT HE ALLOWED THE AIRSPEED TO DIMINISH. WHEN HE ATTEMPTED TO TURN THE GLIDER STALLED AND SPUN IN.
NTSB Probable Cause
THAT THE PILOT USED POOR PLANNING/DECISION AND FAILED TO MAINTAIN FLYING SPEED. CONTRIBUTING TO HIS ACCIDENT WAS THE LOSS OF THERMAL LIFT AND LACK OF EXPERIENCE IN THIS TYPE OF AIRCRAFT.
Full Narrative
THIS CERTIFICATED COMMERCIAL FIXED WING PILOT WAS PRACTICING FOR AN UPCOMING GLIDER FLIGHT TEST. HE WAS AERO TOWED FROM THE GLIDERPORT AT ABOUT 1340 HOURS. WHEN THE GLIDER DID NOT RETURN BY 1700 HOURS THE OPERATOR DISPATCHED 3 TOW AIRPLANE'S TO SEARCH FOR THE GLIDER. THE GLIDER WAS LOCATED AT ABOUT 1750 HOURS. THE PILOT TOLD THE OPERATOR THAT THE GLIDER STARTED LOSING ALTITUDE WHEN RETURNING TO THE GLINDERPORT. HE ELECTED TO FLY ALONG THE RIDGE IN HOPES OF ATTAINING ADDITIONAL THERMALS BUT HE ALLOWED THE AIRSPEED TO DIMINISH. WHEN HE ATTEMPTED TO TURN THE GLIDER STALLED AND SPUN IN.
Flight
Event TypeAccident
Event Time23:01 PST
Nearest AirportWarner Springs (0nm)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSchweizer SGS1-26-D
Tail NumberN7562
Aircraft CategoryGli
DamageDestroyed
OperatorWillat Bert
Operating RulePart 91
Engine TypeUnknown
Engine DetailsUnknown
Seats2
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 65 · Unknown
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility60 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourceWIT