NTSB Reports
Aviation Safety Intelligence
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.

Get the iPhone App
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

March 26, 2008 · Air Tractor AT-301 · N4427S

Plains, KS

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
March 26, 2008
Injury Outcomes
No injuries (1 uninjured)
Location
Plains, KS
Aircraft
Air Tractor AT-301
Tail Number
N4427S
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DFW08CA086

The commercial pilot was repositioning a single-engine agricultural airplane to a private grass strip when the engine lost power while on final approach. The pilot was unable to maintain his altitude so he made a forced landing to the only suitable field available. However, during the roll out he applied the brakes to avoid colliding with a large sprinkler apparatus and flipped over. As a result the vertical stabilizer and the rudder were substantially damaged. Further examination of the radial engine by the operator revealed that the flexible intake hose had come loose and was ingested into the carburetor blocking the throat of the carburetor.

NTSB Probable Cause

A loss of engine power as a result of a blocked carburetor. A factor was the lack of suitable terrain for the forced landing.

Full Narrative

The commercial pilot was repositioning a single-engine agricultural airplane to a private grass strip when the engine lost power while on final approach. The pilot was unable to maintain his altitude so he made a forced landing to the only suitable field available. However, during the roll out he applied the brakes to avoid colliding with a large sprinkler apparatus and flipped over. As a result the vertical stabilizer and the rudder were substantially damage. Further examination of the radial engine by the operator revealed that the flexible intake hose had come loose and was ingested into the carburetor blocking the throat of the carburetor.

Flight

Event TypeAccident
Event Time08:00 MDT
Nearest AirportPRIVATE (0nm)
Flight Plan FiledNone
Aircraft FireNo

Aircraft

AircraftAir Tractor AT-301
Tail NumberN4427S
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsPratt & Whitney · R1340 · Reciprocating

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 23 · Second Class

Conditions

ConditionsVMC
LightDaylight
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0

External Links

Appendix: Source Data