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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

August 17, 1999 · Let Blanik L-13 Blanik L-1 · N7529

Perry, SC

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
August 17, 1999
Injury Outcomes
No injuries (2 uninjured)
Location
Perry, SC
Aircraft
Let Blanik L-13 Blanik L-1
Tail Number
N7529
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MIA99LA227

The glider was being launched by an automobile, and according to the pilot, '...lack of airspeed for adequate climb was generated and resulting release was low 100-150 feet.' The pilot performed a left turn 90 degrees because he did not have sufficent altitude to return to airport. He elected to land in a field adjacent to the airport. He said, 'I inadvertently deployed flaps instead of spoilers resulting in excess float.' Just before the end of the field he turned right to avoid trees. The right wing impacted the ground followed by the nose and left wing.

NTSB Probable Cause

an in-flight collision with the ground due to inadequate liftoff airspeed, and the pilot's improper use of flaps, which resulted in too low of an altitude to sustain flight.

Full Narrative

On August 17, 1999, about 1500 eastern daylight time, a Let Blanik L-13 glider, N7529, registered to the Perry Soaring Association, collided with the ground during takeoff at the Perry Airport, Perry, South Carolina. Visual meteorological conditions prevailed at the time, and no flight plan was filed for the 14 CFR Part 91 local personal flight. The glider was substantially damaged. The private-rated pilot and one passenger reported no injuries. The flight was originating at the time. The glider was being launched by an automobile, and according to the pilot, "...lack of airspeed for adequate climb was generated and resulting release was low 100-150 feet. A left turn 90 degrees was made and I decided I did not have altitude to return to airport. I elected to land in field adjacent to airport...large enough for normal off field landing...I inadvertently deployed flaps instead of spoilers resulting in excess float. Just prior to end of field a right turn was made to avoid trees. The right wing impacted ground followed by nose and opposite wing."

Flight

Event TypeAccident
Event Time15:00 EDT
Nearest AirportPerry International (0nm)
Runway7
Runway Length5000 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftLet Blanik L-13 Blanik L-1
Tail NumberN7529
Aircraft CategoryGli
DamageSubstantial
Operating RulePart 91
Engine TypeUnknown
Engine DetailsUnknown
Seats2

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 44 · None

Conditions

ConditionsVMC
LightDaylight
Wind190° @ 10 kt
Visibility10 sm
CeilingNone
Altimeter29.00 inHg
Observation Time18:53
Weather SourceWFAC

Appendix: Source Data