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

April 4, 1997 · Piper PA-22 · N9231D

Oshkosh, WI

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
April 4, 1997
Injury Outcomes
1 injury (1 minor injury)
Location
Oshkosh, WI
Aircraft
Piper PA-22
Tail Number
N9231D
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
CHI97LA099

The pilot reported that he checked the current weather via the Wittman Field Automatic Terminal Information Service (ATIS) Information. He reported there was a 'crosswind from south west at 14 knots and gusting.' The pilot performed a 'crosswind landing and landed normally on runway 27.... During rollout a gust of wind came from the left and the left went up.' He corrected with aileron 'but was unable to compensate for the gusts.' The airplane departed the runway to the right side 'and flipped, coming to rest inverted.' The aircraft's wings sustained substantial damage. Examination of the airplane revealed no evidence of a mechanical malfunction.

NTSB Probable Cause

the pilot's inadequate compensation for the wind conditions, and his failure to maintain proper runway alignment, which resulted in a subsequent nose over. The gusty crosswind condition was a related factor.

Full Narrative

On April 4, 1997, at 1341 central standard time, a Piper PA-22, N9231D, operated by Star Aviation, Inc., was substantially damaged when it nosed over during the landing roll in Oshkosh, Wisconsin. The private pilot reported minor injuries. The local, personal, 14 CFR Part 91 flight was conducted in visual meteorological conditions and no flight plan was filed. The flight originated from Oshkosh, Wisconsin, at 1300 central standard time. The pilot reported that he checked the current weather via the Wittman Field Automatic Terminal Information Service (ATIS) Information. The pilot reported there was a "crosswind from south west at 14 knots and gusting." The pilot performed a "crosswind landing and landed normally on runway 27.... During rollout a gust of wind came from the left and the left went up." He corrected with aileron "but was unable to compensate for the gusts." The airplane departed the runway to the right side "and flipped, coming to rest inverted." The Federal Aviation Administration (FAA) Inspector, who examined the accident site indicated the airplane had "flipped over" and the wings had sustained substantial damage. No evidence of preimpact mechanical malfunction was reported.

Flight

Event TypeAccident
Event Time13:41 CST
Nearest AirportWittman Field (0nm)
Runway27
Runway Length8000 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftPiper PA-22
Tail NumberN9231D
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B2B · Reciprocating · 160
Seats4

People & Injuries

Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 43 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind220° @ 13 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point70 F / 46
Altimeter29.00 inHg
Observation Time19:47
Weather SourceWFAC

Appendix: Source Data