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

May 20, 1986 · Grumman-Schweizer G-164A · N6680Q

Winona, KS

Overview

Report Status
Preliminary report
Event Type
Accident
Date
May 20, 1986
Injury Outcomes
No injuries (1 uninjured)
Location
Winona, KS
Aircraft
Grumman-Schweizer G-164A
Tail Number
N6680Q
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MKC86LA114

THE PILOT STATED THAT HE BORROWED THE AIRPLANE FROM HIS FATHER TO PRACTICE TAKEOFFS AND LANDINGS AT HIS FATHER'S PRIVATE, CROP DUSTING AIRSTRIP. THERE WERE NO CHEMICALS ONBOARD, ACCORDING TO THE PILOT. HE FURTHER STATED THAT ON A GO-AROUND MANEUVER, AND AS HE TRIED TO GO OVER A BUILDING, THE ENGINE LOST POWER AND HE WAS FORCED TO LAND THE AIRCRAFT IN A OPEN FIELD. THE AIRCRAFT STALLED, TOUCHED DOWN HARD, BOUNCED, THEN NOSED OVER. WINDS WERE FROM THE SOUTHEAST AT 16 KNOTS AND THE PILOT WAS USING RUNWAY 09. DENSITY ALTITUDE WAS DETERMINED TO 5,600 FEET. CAUSE OF THE REPORTED LOSS OF POWER WAS NOT DETERMINED.

Full Narrative

THE PILOT STATED THAT HE BORROWED THE AIRPLANE FROM HIS FATHER TO PRACTICE TAKEOFFS AND LANDINGS AT HIS FATHER'S PRIVATE, CROP DUSTING AIRSTRIP. THERE WERE NO CHEMICALS ONBOARD, ACCORDING TO THE PILOT. HE FURTHER STATED THAT ON A GO-AROUND MANEUVER, AND AS HE TRIED TO GO OVER A BUILDING, THE ENGINE LOST POWER AND HE WAS FORCED TO LAND THE AIRCRAFT IN A OPEN FIELD. THE AIRCRAFT STALLED, TOUCHED DOWN HARD, BOUNCED, THEN NOSED OVER. WINDS WERE FROM THE SOUTHEAST AT 16 KNOTS AND THE PILOT WAS USING RUNWAY 09. DENSITY ALTITUDE WAS DETERMINED TO 5,600 FEET. CAUSE OF THE REPORTED LOSS OF POWER WAS NOT DETERMINED.

Flight

Event TypeAccident
Event Time16:30 MDT
Nearest Airport0nm N
Runway9
Runway Length2600 ft
Runway Width25 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftGrumman-Schweizer G-164A
Tail NumberN6680Q
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-985-AN1 · Reciprocating · 450
Seats1

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 20 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind150° @ 16 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point48
Altimeter29.00 inHg
Observation Time21:50
Weather SourceWFAC

Appendix: Source Data