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

July 4, 1986 · Piper PA-31-350 · N4109E

Barrow, AK

Overview

Report Status
Preliminary report
Event Type
Accident
Date
July 4, 1986
Injury Outcomes
No injuries (2 uninjured)
Location
Barrow, AK
Aircraft
Piper PA-31-350
Tail Number
N4109E
Operator
Cape Smythe Air Service
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC86LA099

THE PLT STATED THERE WERE MECHANICAL PROBLEMS WITH THE ACFT BUT IT WAS DECIDED TO FLY IT BACK TO ANOTHER ARPT FOR REPAIRS. ENROUTE THE PLT SHUT DOWN THE RIGHT ENG BECAUSE OF AN OIL LEAK. WHILE ATTEMPTING TO CROSSFEED FUEL, THE PLT ACCIDENTLY PUSHED THE LEFT ENG FIRE WALL FUEL SHUT OFF VALVE WHICH RESULTED IN A LOSS OF PWR ON THE LEFT ENG. THE ACFT WAS SUBSTANTIALLY DAMAGED DURING THE FORCED LANDING ON ROUGH TUNDRA.

Full Narrative

THE PLT STATED THERE WERE MECHANICAL PROBLEMS WITH THE ACFT BUT IT WAS DECIDED TO FLY IT BACK TO ANOTHER ARPT FOR REPAIRS. ENROUTE THE PLT SHUT DOWN THE RIGHT ENG BECAUSE OF AN OIL LEAK. WHILE ATTEMPTING TO CROSSFEED FUEL, THE PLT ACCIDENTLY PUSHED THE LEFT ENG FIRE WALL FUEL SHUT OFF VALVE WHICH RESULTED IN A LOSS OF PWR ON THE LEFT ENG. THE ACFT WAS SUBSTANTIALLY DAMAGED DURING THE FORCED LANDING ON ROUGH TUNDRA.

Flight

Event TypeAccident
Event Time20:25 AKDT
Nearest Airport0nm N
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftPiper PA-31-350
Tail NumberN4109E
Aircraft CategoryAir
DamageSubstantial
OperatorCape Smythe Air Service
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · TIO-540-J2B · Reciprocating · 350
Seats8

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 34 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind240° @ 10 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point64 F / 19 C
Altimeter29.00 inHg
Weather SourcePILO

Appendix: Source Data