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

October 14, 1991 · Cessna 180 · N4693B

Berners Bay, AK

Overview

Report Status
Probable Cause
Event Type
Accident
Date
October 14, 1991
Injury Outcomes
No injuries (2 uninjured)
Location
Berners Bay, AK
Aircraft
Cessna 180
Tail Number
N4693B
Operator
Mueller Joseph R
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC92LA009

THE PILOT STATED THAT WHEN HE TURNED THE AIRPLANE AROUND IN PREPARATION FOR A TAKEOFF FROM THE BEACH, THE WHEEL ON THE INSIDE OF THE TURN DUG DOWN INTO THE SAND. WHEN POWER WAS APPLIED TO BEGIN THE TAKEOFF RUN, THE AIRPLANE NOSED OVER.

NTSB Probable Cause

THE PILOT'S LOSS OF CONTROL DURING THE PRE TAKEOFF TAXI, DUE TO HIS IMPROPER HANDLING OF THE AIRPLANE. CONTRIBUTING TO THE ACCIDENT WAS THE SOFT TAKEOFF AREA.

Full Narrative

THE PILOT STATED THAT WHEN HE TURNED THE AIRPLANE AROUND IN PREPARATION FOR A TAKEOFF FROM THE BEACH, THE WHEEL ON THE INSIDE OF THE TURN DUG DOWN INTO THE SAND. WHEN POWER WAS APPLIED TO BEGIN THE TAKEOFF RUN, THE AIRPLANE NOSED OVER.

Flight

Event TypeAccident
Event Time17:00 AKDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 180
Tail NumberN4693B
Aircraft CategoryAir
DamageSubstantial
OperatorMueller Joseph R
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-470-J · Reciprocating · 225
Seats4

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 45 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind120° @ 25 kt, gusting 30 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point50 / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data