Premium research interface

The modern interface for aviation safety intelligence.

Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.

63k+
Reports indexed
1940-2026
Coverage
Recent
Last data refresh
Featured Report

Loading…

Loading featured report…

Loading…
Open Report

Safety trends by operating rule

Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.

Loading trend charts…

Browse the aviation graph

Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.

Last Data Update

By Decade

By Month

Aircraft Manufacturer

More manufacturers

Airports

More airports

Operators

More operators

About

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.

The goal is practical safety education: make it faster to find relevant investigations, compare similar events, review factual records, and understand the evidence behind probable-cause and preliminary reports.

The investigative work and source records belong to the National Transportation Safety Board and the published investigation record. This site is not affiliated with or endorsed by the NTSB.

FAQs

NTSB Report

September 7, 1990 · Schleicher ASK-21 · N21SX

Memphis, TN

Overview

Report Status
Probable Cause
Event Type
Accident
Date
September 7, 1990
Injury Outcomes
2 injuries (2 serious injuries)
Location
Memphis, TN
Aircraft
Schleicher ASK-21
Tail Number
N21SX
Operator
Memphis Soaring Society
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
ATL90LA168

THE GLIDER PILOT HAD FLOWN FOR ABOUT 1.5 HOURS AND WAS HEADING BACK TO THE AIRSTRIP FOR LANDING. HE DID NOT MAINTAIN SUFFICIENT ALTITUDE TO REACH THE AIRSTRIP, SO HE ELECTED TO LAND THE GLIDER IN AN OPEN FIELD. THE LEFT WING COLLIDED WITH A TREE ADJACENT TO THE FIELD, AND THE PILOT LOST CONTROL OF THE GLIDER. THE GLIDER CRASHED ONTO THE FIELD IN A NOSE LOW ATTITUDE. HE REPORTED NO MECHANICAL PROBLEMS WITH THE GLIDER.

NTSB Probable Cause

AN INFLIGHT COLLISION WITH A TREE DUE TO MISJUDGING HIS GLIDEPATH.

Full Narrative

THE GLIDER PILOT HAD FLOWN FOR ABOUT 1.5 HOURS AND WAS HEADING BACK TO THE AIRSTRIP FOR LANDING. HE DID NOT MAINTAIN SUFFICIENT ALTITUDE TO REACH THE AIRSTRIP, SO HE ELECTED TO LAND THE GLIDER IN AN OPEN FIELD. THE LEFT WING COLLIDED WITH A TREE ADJACENT TO THE FIELD, AND THE PILOT LOST CONTROL OF THE GLIDER. THE GLIDER CRASHED ONTO THE FIELD IN A NOSE LOW ATTITUDE. HE REPORTED NO MECHANICAL PROBLEMS WITH THE GLIDER.

Flight

Event TypeAccident
Event Time17:15 CDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftSchleicher ASK-21
Tail NumberN21SX
Aircraft CategoryGli
DamageSubstantial
OperatorMemphis Soaring Society
Operating RulePart 91
Engines0
Engine TypeUnknown
Engine DetailsUnknown
Seats2

People & Injuries

Injury Summary2 injuries (2 serious injuries)
Fatal0
Serious2
Minor0
Uninjured0
Total2
Crew 1Age 62 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind240° @ 12 kt
Visibility10 sm
CeilingNone
Altimeter29.00 inHg
Observation Time21:51
Weather SourceWFAC

Appendix: Source Data