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 3, 1993 · Piper PA-18 · N82231

Chugiak, AK

Overview

Report Status
Probable Cause
Event Type
Accident
Date
May 3, 1993
Injury Outcomes
No injuries (1 uninjured)
Location
Chugiak, AK
Aircraft
Piper PA-18
Tail Number
N82231
Operator
Mayeur Clint
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC93LA058

AFTER TOUCHDOWN ON THE GRAVEL RUNWAY, THE PILOT APPLIED BRAKES AND FOUND THE RIGHT BRAKE INOPERATIVE. THE AIRPLANE VEERED OFF THE LEFT SIDE OF THE RUNWAY AND COLLIDED WITH A BERM. THE PILOT SAID HE DID NOT CHECK THE BRAKES PRIOR TO LANDING. POST ACCIDENT EXAMINATION FOUND THAT MOST OF THE HYDRAULIC BRAKE FLUID HAD DRAINED OUT OF THE RIGHT BRAKE SYSTEM FROM AN IMPROPERLY FLARED LINE AT THE RIGHT BRAKE ASSEMBLY.

NTSB Probable Cause

THE FAILURE OF THE RIGHT BRAKE DUE TO IMPROPER INSTALLATION OF THE BRAKE LINE. FACTORS WERE THE PILOT'S IMPROPER IN FLIGHT PLANNING/DECISION BY NOT CHECKING THE BRAKES PRIOR TO LANDING, AND THE BERM.

Full Narrative

AFTER TOUCHDOWN ON THE GRAVEL RUNWAY, THE PILOT APPLIED BRAKES AND FOUND THE RIGHT BRAKE INOPERATIVE. THE AIRPLANE VEERED OFF THE LEFT SIDE OF THE RUNWAY AND COLLIDED WITH A BERM. THE PILOT SAID HE DID NOT CHECK THE BRAKES PRIOR TO LANDING. POST ACCIDENT EXAMINATION FOUND THAT MOST OF THE HYDRAULIC BRAKE FLUID HAD DRAINED OUT OF THE RIGHT BRAKE SYSTEM FROM AN IMPROPERLY FLARED LINE AT THE RIGHT BRAKE ASSEMBLY.

Flight

Event TypeAccident
Event Time21:30 AKDT
Nearest AirportBirchwood (0nm)
Runway1
Runway Length2500 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftPiper PA-18
Tail NumberN82231
Aircraft CategoryAir
DamageSubstantial
OperatorMayeur Clint
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-A2B · Reciprocating · 150
Seats2

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 30 · Second Class

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility60 sm
CeilingNone
Temperature / Dew Point55 / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data