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

September 15, 1991 · Mooney M20F · N3492N

Kent, WA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
September 15, 1991
Injury Outcomes
2 injuries (2 minor injuries)
Location
Kent, WA
Aircraft
Mooney M20F
Tail Number
N3492N
Operator
William E Claussen
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
SEA91LA236

THE PILOT REPORTED THAT DURING A LANDING, THE AIRCRAFT ENTERED A PORPOISE AND BEGAN DRIFTING TO THE LEFT. HE TRIED TO RE-ALIGN THE AIRCRAFT WITH THE RUNWAY, THEN INITIATED A GO-AROUND. THE AIRCRAFT BEGAN TO CLIMB; HOWEVER, IT CONTINUED DRIFTING LEFT, HIT TREES ABOUT 15 FT BELOW THE TOPS AND CRASHED.

NTSB Probable Cause

FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL AND PROPER RUNWAY ALIGNMENT DURING THE LANDING AND GO-AROUND (ABORTED LANDING). FACTORS RELATED TO THE ACCIDENT WERE: THE PILOT'S IMPROPER FLARE AND IMPROPER RECOVERY FROM A BOUNCED LANDING, WHICH RESULTED IN A PORPOISE.

Full Narrative

THE PILOT REPORTED THAT DURING A LANDING, THE AIRCRAFT ENTERED A PORPOISE AND BEGAN DRIFTING TO THE LEFT. HE TRIED TO RE-ALIGN THE AIRCRAFT WITH THE RUNWAY, THEN INITIATED A GO-AROUND. THE AIRCRAFT BEGAN TO CLIMB; HOWEVER, IT CONTINUED DRIFTING LEFT, HIT TREES ABOUT 15 FT BELOW THE TOPS AND CRASHED.

Flight

Event TypeAccident
Event Time17:25 PDT
Nearest AirportCrest Airpark (0nm N)
Runway33
Runway Length3267 ft
Runway Width40 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftMooney M20F
Tail NumberN3492N
Aircraft CategoryAir
DamageSubstantial
OperatorWilliam E Claussen
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-A1A · Reciprocating · 200
Seats4

People & Injuries

Injury Summary2 injuries (2 minor injuries)
Fatal0
Serious0
Minor2
Uninjured0
Total2
Crew 1Age 44 · Third Class

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility7 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data