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 9, 1991 · Helio H-295 · N456JH

Port Alsworth, AK

Overview

Report Status
Probable Cause
Event Type
Accident
Date
July 9, 1991
Injury Outcomes
3 injuries (3 minor injuries), 1 uninjured
Location
Port Alsworth, AK
Aircraft
Helio H-295
Tail Number
N456JH
Operator
James K Harrower
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
ANC91LA093

THE PILOT STATED THAT WHILE FLYING AT ABOUT 500 FEET ABOVE MOUNTAINOUS TERRAIN & APPROACHING A SADDLE, THE AIRPLANE ENCOUNTERED A DOWNDRAFT. DESPITE THE ADDITION OF FULL POWER, THE AIRPLANE CONTINED TO DESCEND UNTIL IT CONTACTED THE GROUND & NOSED OVER.

NTSB Probable Cause

FAILURE OF THE PILOT TO MAINTAIN SUFFICIENT ALTITUDE AND CLEARANCE FROM MOUNTAINOUS TERRAIN. FACTORS RELATED TO THE ACCIDENT WERE: THE RISING TERRAIN AND A DOWNDRAFT.

Full Narrative

THE PILOT STATED THAT WHILE FLYING AT ABOUT 500 FEET ABOVE MOUNTAINOUS TERRAIN & APPROACHING A SADDLE, THE AIRPLANE ENCOUNTERED A DOWNDRAFT. DESPITE THE ADDITION OF FULL POWER, THE AIRPLANE CONTINED TO DESCEND UNTIL IT CONTACTED THE GROUND & NOSED OVER.

Flight

Event TypeAccident
Event Time10:20 AKDT
Nearest Airport0nm
Runway0
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftHelio H-295
Tail NumberN456JH
Aircraft CategoryAir
DamageSubstantial
OperatorJames K Harrower
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · GO-480 · Reciprocating · 295
Seats5

People & Injuries

Injury Summary3 injuries (3 minor injuries), 1 uninjured
Fatal0
Serious0
Minor3
Uninjured1
Total4
Crew 1Age 52 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind360° @ 10 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data