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

December 8, 1983 · Bell 206B III · N113ML

Grand Canyon, AZ

Overview

Report Status
Preliminary report
Event Type
Accident
Date
December 8, 1983
Injury Outcomes
2 injuries (2 serious injuries), 1 uninjured
Location
Grand Canyon, AZ
Aircraft
Bell 206B III
Tail Number
N113ML
Operator
U S Dept of Interior
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
LAX84FA097

THE HELICOPTER STRUCK A CABLE WHILE FLYING ABOUT 25 FT AGL IN THE GRAND CANYON. THE ACFT WAS ON AN AERIAL OBSERVATION TO SURVEY AND ACQUAINT A PASSENGER WITH THE ARIZONA STRIP WILDERNESS DISTRICT. PHOENIX FSS HIGHLY RECOMMENDS THAT PLTS NOT FLY DOWN INTO THE CANYON. THE CABLES WERE ABOUT 34 FT ABOVE THE SURFACE OF THE COLORADO RIVER AND THE HELICOPTER WENT BELOW THE CABLE WHICH CONTACTED THE MAIN ROTOR MAST AND SEPARATED IT FROM THE FUSELAGE. SINCE THIS ACCIDENT CABLES IN GRANDS CANYON NATIONAL PARK WERE MARKED WTH ORANGE BALLS.

Full Narrative

THE HELICOPTER STRUCK A CABLE WHILE FLYING ABOUT 25 FT AGL IN THE GRAND CANYON. THE ACFT WAS ON AN AERIAL OBSERVATION TO SURVEY AND ACQUAINT A PASSENGER WITH THE ARIZONA STRIP WILDERNESS DISTRICT. PHOENIX FSS HIGHLY RECOMMENDS THAT PLTS NOT FLY DOWN INTO THE CANYON. THE CABLES WERE ABOUT 34 FT ABOVE THE SURFACE OF THE COLORADO RIVER AND THE HELICOPTER WENT BELOW THE CABLE WHICH CONTACTED THE MAIN ROTOR MAST AND SEPARATED IT FROM THE FUSELAGE. SINCE THIS ACCIDENT CABLES IN GRANDS CANYON NATIONAL PARK WERE MARKED WTH ORANGE BALLS.

Flight

Event TypeAccident
Event Time14:15 MST
Nearest Airport0nm N
Runway0
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftBell 206B III
Tail NumberN113ML
Aircraft CategoryHeli
DamageDestroyed
OperatorU S Dept of Interior
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 420
Seats5

People & Injuries

Injury Summary2 injuries (2 serious injuries), 1 uninjured
Fatal0
Serious2
Minor0
Uninjured1
Total3
Crew 1Age 45 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind250° @ 12 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point48 / 19 C
Altimeter30.00 inHg
Observation Time20:45

Appendix: Source Data