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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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NTSB Report

January 26, 1991 · Schweizer SGS 2-33A · N5763S

Williamstown, MA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
January 26, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Williamstown, MA
Aircraft
Schweizer SGS 2-33A
Tail Number
N5763S
Operator
Mohawk Soaring Club
Injuries
None
Aircraft Damage
Substantial
NTSB Number
NYC91LA066

THE PILOT DID NOT RETRACT THE SPEED BRAKES PRIOR TO TAKEOFF. THE TOW PILOT WAS UNABLE TO ATTAIN SUFFICIENT ALTITUDE AND AIRSPEED AND HAD TO RELEASE THE GLIDER AT A LOW ALTITUDE. THE GLIDER PILOT THEN RETRACTED THE SPEED BRAKES, BUT HE DID NOT HAVE ENOUGH ALTITUDE TO CLIMB. HE MADE A FORCED LANDING AND STRUCK A POLE. THE GLIDER PILOT HAD A TOTAL OF 26 HOURS IN GLIDERS.

NTSB Probable Cause

THE FAILURE OF THE PILOT TO RETRACT THE SPEED BRAKES DURING THE PREFLIGHT, WHICH RESULTED IN THE TOW AIRPLANE BEING UNABLE TO ATTAIN SUFFICIENT ALTITUDE PRIOR TO RELEASING THE GLIDER, AND THE SUBSEQUENT LANDING OF THE GLIDER ON UNSUITABLE TERRAIN.

Full Narrative

THE PILOT DID NOT RETRACT THE SPEED BRAKES PRIOR TO TAKEOFF. THE TOW PILOT WAS UNABLE TO ATTAIN SUFFICIENT ALTITUDE AND AIRSPEED AND HAD TO RELEASE THE GLIDER AT A LOW ALTITUDE. THE GLIDER PILOT THEN RETRACTED THE SPEED BRAKES, BUT HE DID NOT HAVE ENOUGH ALTITUDE TO CLIMB. HE MADE A FORCED LANDING AND STRUCK A POLE. THE GLIDER PILOT HAD A TOTAL OF 26 HOURS IN GLIDERS.

Flight

Event TypeAccident
Event Time13:07 EST
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftSchweizer SGS 2-33A
Tail NumberN5763S
Aircraft CategoryGli
DamageSubstantial
OperatorMohawk Soaring Club
Operating RulePart 91
Engine TypeUnknown
Engine DetailsUnknown · UNK/NA · Unknown
Seats2

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 70 · Third Class

Conditions

ConditionsVMC
LightNr
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data