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

October 13, 1988 · Bell 47G-3B2 · N46073

Cottonwood Canyon, NV

Overview

Report Status
Factual report
Event Type
Accident
Date
October 13, 1988
Injury Outcomes
3 injuries (3 minor injuries)
Location
Cottonwood Canyon, NV
Aircraft
Bell 47G-3B2
Tail Number
N46073
Operator
Bureau of Land Management
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
SEA89TL006

ON A FLIGHT TO MONITOR ANIMAL HEALTH OF HORSES, THE PILOT WAS ATTEMPTING TO LAND TO A SUITABLE LANDING SITE. DURING FINAL APPROACH ON THE THIRD ATTEMPT, THE AIRSPEED WAS ABOUT 5 MPH AND ALTITUDE ABOUT 15 FEET AGL, WHEN THE HELICOPTER STARTED TURNING TO THE RIGHT. THE PILOT ATTEMPTED TO CORRECT THE SITUATION, BUT THE HELICOPTER 'SETTLED-IN VERTICALLY' WITH SUFFICIENT FORCE TO DAMAGE THE HELICOPTER. THE WIND WAS REPORTED TO BE FROM 180 TO 225 DEGREES AT 5 GUSTING 15 KNOTS.

Full Narrative

SEE ATTACHED COPY OF NTSB FORM 6120.1/2 AS REQUIRED BY PL 100-223. "INVESTIGATED BY" DATA BLOCK WAS ENTERED IN ERROR ONLY TO SATISFY THE COMPUTER ENTRY REQUIREMENTS.

Flight

Event TypeAccident
Event Time13:35 PDT
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireUnknown
Aircraft ExplosionUnknown

Aircraft

AircraftBell 47G-3B2
Tail NumberN46073
Aircraft CategoryHeli
DamageSubstantial
OperatorBureau of Land Management
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · TVO-435-G1A · Reciprocating · 280
Seats3

People & Injuries

Injury Summary3 injuries (3 minor injuries)
Fatal0
Serious0
Minor3
Uninjured0
Total3
Crew 1Age 30 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind5 kt, gusting 15 kt
CeilingNone
Temperature / Dew Point55 / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data