Overall Trends
Total, fatal, and serious accidents in the selected range.
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
Search everything
Fast key and full-text search with live filters, watches, and precise metadata.
Use quotes for exact phrase matches (for example "fuel selector valve").
Featured 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…
High-signal investigations
Major cases, deep-report coverage, and investigation media across decades of NTSB history.
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 manufacturersAirports
More airportsOperators
More operatorsAbout
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
May 20, 2017 · Schweizer SGS233 A · N1242S
Springfield, VT
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
May 20, 2017
Injury Outcomes
No injuries (2 uninjured)
Location
Springfield, VT
Aircraft
Schweizer SGS233 A (1971)
Tail Number
N1242S
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA17CA298
The flight instructor reported that, during the turn to final approach, the glider appeared to be above glidepath, so the student pilot used dive brakes to descend. He added that, once the glider returned to a normal glidepath, the student retracted the dive brakes, but the glider continued in a "higher than normal" descent rate. The flight instructor took control of the glider and landed short of the intended runway in trees. The glider sustained substantial damage to the fuselage. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation. The student pilot failed to submit a written statement after multiple requests.
NTSB Probable Cause
The student pilot’s failure to maintain an adequate glidepath and the flight instructor’s delayed remedial action, which resulted in the glider landing short of the runway in trees.
Full Narrative
The flight instructor reported that, during the turn to final approach, the glider appeared to be above glidepath, so the student pilot used dive brakes to descend. He added that once the glider returned to a normal glidepath the student retracted the dive brakes, but the glider continued in a "higher than normal" descent rate. The flight instructor took control of the glider and landed short of the intended runway in trees. The glider sustained substantial damage to the fuselage. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation. The student pilot failed to submit a written statement after multiple requests.
Flight
Event TypeAccident
Event Time15:45 EDT
Nearest AirportHartness State (Springfield) (0nm SSW)
Runway05
Runway Length5501 ft
Runway Width100 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSchweizer SGS233 A
Tail NumberN1242S
Aircraft CategoryGli
DamageSubstantial
Operating RulePart 91
Engines0
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 54 · Second Class · None
Crew 2Age 15 · None · None
Conditions
ConditionsVMC
LightDaylight
Wind40° @ 8 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point68 F / 18 C
Altimeter30.28 inHg
Observation Time19:54
Weather SourceWFAC