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

July 19, 2011 · Cessna A188B · N4725R

Greenstown, IN

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
July 19, 2011
Injury Outcomes
No injuries (1 uninjured)
Location
Greenstown, IN
Aircraft
Cessna A188B
Tail Number
N4725R
Operator
Agri-Green Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN11CA495

According to the pilot, he was spraying a corn field at a low altitude. He said that the airplane spray booms contacted the corn and the corn debris accumulated on the boom. He performed a forced landing to a field after the airplane was unable to maintain airspeed and altitude due to the increase in drag. The airplane sustained substantial damage to the fuselage and wings. The pilot reported no mechanical anomalies that would have precluded normal operation.

NTSB Probable Cause

The pilot's failure to maintain adequate clearance from vegetation that caused increased drag during a low-level maneuvering flight.

Full Narrative

The pilot stated that during the aerial application of a corn field, the airplane altitude became too low. The airplane spray booms contacted the corn and the accumulation of the corn debris on the boom increased drag. The pilot performed a forced landing to a field after the airplane was unable to maintain airspeed and altitude due to the drag increase. The airplane sustained substantial damage to the fuselage and wings.

Flight

Event TypeAccident
Event Time09:40 EDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna A188B
Tail NumberN4725R
Aircraft CategoryAir
DamageSubstantial
OperatorAgri-Green Aviation
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsContinental Motors · IO-520 · Reciprocating
Seats1

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 22 · Second Class · None

Conditions

ConditionsVMC
LightDaylight
Wind300° @ 7 kt
Visibility7 sm
CeilingOvercast 1000 ft
Altimeter29.93 inHg
Observation Time13:35
Weather SourceWFAC

Appendix: Source Data