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 16, 1990 · Cessna C-150M · N9477U

Chakachamna, AK

Overview

Report Status
Probable Cause
Event Type
Accident
Date
May 16, 1990
Injury Outcomes
No injuries (1 uninjured)
Location
Chakachamna, AK
Aircraft
Cessna C-150M
Tail Number
N9477U
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC90LA089

THE PILOT-IN-COMMAND LANDED ON A ROAD UNEVENTFULLY; HE THEN PERFORMED A HIGH SPEED TAXI TO A PARKING AREA AND DURING THE TAXI, BRUSH ON BOTH SIDES OF THE ROAD WAS STRIKING THE OUTER PORTIONS OF BOTH WINGS. THE BRUSH ON THE LEFT SIDE OF THE AIRPLANE STOPPED AND THE BRUSH ON THE RIGHT SIDE CAUSED THE AIRPLANE TO VEER TO THE RIGHT OFF THE ROAD.

NTSB Probable Cause

PILOT-IN-COMMAND'S FAILURE TO PROPERLY SURVEY THE LANDING AREA AND ENSURE THE APPROPRIATE WIDTH FOR HIS AIRPLANE.

Full Narrative

THE PILOT-IN-COMMAND LANDED ON A ROAD UNEVENTFULLY; HE THEN PERFORMED A HIGH SPEED TAXI TO A PARKING AREA AND DURING THE TAXI, BRUSH ON BOTH SIDES OF THE ROAD WAS STRIKING THE OUTER PORTIONS OF BOTH WINGS. THE BRUSH ON THE LEFT SIDE OF THE AIRPLANE STOPPED AND THE BRUSH ON THE RIGHT SIDE CAUSED THE AIRPLANE TO VEER TO THE RIGHT OFF THE ROAD.

Flight

Event TypeAccident
Event Time20:00 AKDT
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna C-150M
Tail NumberN9477U
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-200-A · Reciprocating · 100
Seats2

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 25 · Second Class

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility60 sm
CeilingOvercast 4000 ft
Temperature / Dew Point50 / 0 C
Altimeter0
Observation Time16:00
Weather SourcePILO

Appendix: Source Data