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NTSB Report
July 26, 1991 · Let L-13 · N781BA
Gregory, MI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 26, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Gregory, MI
Aircraft
Let L-13
Tail Number
N781BA
Operator
Sandhill Soaring Club
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI91LA231
THE STUDENT GLIDER PILOT SAID THAT HE INADVERTENTLY DEPLOYED THE FLAPS INSTEAD OF THE SPOILERS WHILE MAKING A LANDING APPROACH. THE GLIDE PATH WAS SHALLOWED AND THE PILOT WAS UNABLE TO LAND ON THE GRASS STRIP. THE GLIDER OVERSHOT THE RUNWAY AND COLLIDED WITH POWER LINES, THEN THE ROUGH TERRAIN.
NTSB Probable Cause
A COLLISION WITH WIRES AFTER THE GLIDER OVERSHOT THE LANDING AREA DUE TO INADVERTENT LOWERING OF THE FLAPS AND NO USE OF SPOILERS.
Full Narrative
THE STUDENT GLIDER PILOT SAID THAT HE INADVERTENTLY DEPLOYED THE FLAPS INSTEAD OF THE SPOILERS WHILE MAKING A LANDING APPROACH. THE GLIDE PATH WAS SHALLOWED AND THE PILOT WAS UNABLE TO LAND ON THE GRASS STRIP. THE GLIDER OVERSHOT THE RUNWAY AND COLLIDED WITH POWER LINES, THEN THE ROUGH TERRAIN.
Flight
Event TypeAccident
Event Time19:30 EDT
Nearest AirportRICHMOND (0nm N)
Runway35
Runway Length2252 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftLet L-13
Tail NumberN781BA
Aircraft CategoryGli
DamageSubstantial
OperatorSandhill Soaring Club
Operating RulePart 91
Engines0
Engine TypeUnknown
Engine DetailsUnknown
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 45 · None
Conditions
ConditionsVMC
LightDaylight
Wind350° @ 7 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time22:50
Weather SourceWFAC