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

June 6, 1991 · Cessna U206F · N713OX

Muskegon, MI

Overview

Report Status
Probable Cause
Event Type
Accident
Date
June 6, 1991
Injury Outcomes
2 injuries (2 fatalities)
Location
Muskegon, MI
Aircraft
Cessna U206F
Tail Number
N713OX
Operator
Richard a Grey
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
CHI91FA181

THE ACCIDENT AIRPLANE WAS FOUND IN A WOODED AREA EARLY IN THE MORNING. TWO DECEASED FOREIGN NATIONALS WERE IN THE WRECKAGE. BOTH PERSONS WERE CERTIFICATED BY THEIR GOVERNMENT AS PILOTS. ONE OF THE PERSONS WAS CERTIFICATED IN THE U.S. AS A COMMERCIAL PILOT. DOCUMENTS FOUND ABOARD THE AIRPLANE SHOW THE AIRPLANE WAS SOLD BY THE OPERATOR TO THE PILOT PASSENGER. AN EXPORT CERTIFICATE OF AIRWORTHINESS WAS IN THE AIRPLANE. THE AIRPLANE STARTED ITS FERRY FLIGHT OUT OF THE COUNTRY THE EVENING BEFORE IT WAS FOUND WHEN FOUND THE FUEL TANKS IN BOTH WINGS WERE BROKEN OPEN. THERE WAS WILTED AND DISCOLORED VEGETATION UNDER THE RIGHT WING ONLY. THE FUEL TANK SELECTOR SWITCH WAS POSITIONED TO DRAW FUEL FROM THE RIGHT WING. THE SWITCH FOR THE ELECTRIC FUEL PUMP WAS SELECTED TO THE OFF POSITION.

NTSB Probable Cause

INADEQUATE REMEDIAL ACTION BY THE PILOT AFTER EXHAUSTING ALL THE FUEL FROM A SELECTED FUEL TANK. FACTORS ASSOCIATED WITH THE ACCIDENT ARE THE PILOTS INADEQUATE TRANSITION AND UPGRADE TRAINING AND A LACK OF FAMILIARITY WITH THE ACCIDENT AIRPLANE.

Full Narrative

THE ACCIDENT AIRPLANE WAS FOUND IN A WOODED AREA EARLY IN THE MORNING. TWO DECEASED FOREIGN NATIONALS WERE IN THE WRECKAGE. BOTH PERSONS WERE CERTIFICATED BY THEIR GOVERNMENT AS PILOTS. ONE OF THE PERSONS WAS CERTIFICATED IN THE U.S. AS A COMMERCIAL PILOT. DOCUMENTS FOUND ABOARD THE AIRPLANE SHOW THE AIRPLANE WAS SOLD BY THE OPERATOR TO THE PILOT PASSENGER. AN EXPORT CERTIFICATE OF AIRWORTHINESS WAS IN THE AIRPLANE. THE AIRPLANE STARTED ITS FERRY FLIGHT OUT OF THE COUNTRY THE EVENING BEFORE IT WAS FOUND WHEN FOUND THE FUEL TANKS IN BOTH WINGS WERE BROKEN OPEN. THERE WAS WILTED AND DISCOLORED VEGETATION UNDER THE RIGHT WING ONLY. THE FUEL TANK SELECTOR SWITCH WAS POSITIONED TO DRAW FUEL FROM THE RIGHT WING. THE SWITCH FOR THE ELECTRIC FUEL PUMP WAS SELECTED TO THE OFF POSITION.

Flight

Event TypeAccident
Event Time07:30 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna U206F
Tail NumberN713OX
Aircraft CategoryAir
DamageDestroyed
OperatorRichard a Grey
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · I0 520F · Reciprocating · 300
Seats6

People & Injuries

Injury Summary2 injuries (2 fatalities)
Fatal2
Serious0
Minor0
Uninjured0
Total2
Crew 1Age 29 · Second Class

Conditions

ConditionsVMC
LightDark Night
Wind70° @ 3 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point48 / 48
Altimeter0
Observation Time09:50
Weather SourceWFAC

Appendix: Source Data