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NTSB Report
July 31, 2021 · Let L-23 Super Blanik · N373BA
Sterling, MA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 31, 2021
Injury Outcomes
1 injury (1 serious injury), 1 uninjured
Location
Sterling, MA
Aircraft
Let L-23 Super Blanik (2000)
Tail Number
N373BA
Operator
Greater Boston Soaring Club
Injuries
Serious
Aircraft Damage
Minor
NTSB Number
ERA21LA327
The flight instructor reported that student pilot was flying the glider as it approached to land with the air brakes in the fully extended position. As the student pilot attempted to flare, the glider pitched up and stalled several feet above the runway, resulting in a hard landing. During the hard landing, the glider sustained minor damage and the student pilot was not injured; however, the flight instructor was seriously injured. The flight instructor added that there were no preimpact mechanical malfunctions with the glider and he should have had his hands in close proximity to the controls to be ready to prevent any abrupt inputs and take control if required.
NTSB Probable Cause
The flight instructor’s lack of remedial action, which resulted in an aerodynamic stall in the landing flare and a hard landing.
Full Narrative
The flight instructor reported that student pilot was flying the glider as it approached to land with the air brakes in the fully extended position. As the student pilot attempted to flare, the glider pitched up and stalled several feet above the runway, resulting in a hard landing. During the hard landing, the glider sustained minor damage and the student pilot was not injured; however, the flight instructor was seriously injured. The flight instructor added that there were no preimpact mechanical malfunctions with the glider and he should have had his hands in close proximity to the controls to be ready to prevent any abrupt inputs and take control if required.
Flight
Event TypeAccident
Event Time12:58 EDT
Nearest AirportSterling Airport (0nm N)
Runway34
Runway Length3086 ft
Runway Width40 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftLet L-23 Super Blanik
Tail NumberN373BA
Aircraft CategoryGli
DamageMinor
OperatorGreater Boston Soaring Club
Operating RulePart 91
Engines0
Seats2
People & Injuries
Injury Summary1 injury (1 serious injury), 1 uninjured
Fatal0
Serious1
Minor0
Uninjured1
Total2
Crew 1Age 76 · None · Serious
Crew 2Age 33 · None · None
Conditions
ConditionsVMC
LightDaylight
Wind270° @ 10 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point46
Altimeter29.93 inHg
Observation Time12:52
Weather SourceWFAC