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

March 29, 2017 · Aerospatiale AS355 F1 · G-OHCP

Snowdonia, GB

Overview

Report Status
Factual report
Event Type
Accident
Date
March 29, 2017
Injury Outcomes
5 injuries (5 fatalities)
Location
Snowdonia, GB
Aircraft
Aerospatiale AS355 F1
Tail Number
G-OHCP
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
CEN17WA143

On March 29, 2017, about 1500 coordinated universal time, an Aerospatiale AS355 F1 helicopter, G-OHCP, collided with Rhinog Fawr mountain in Snowdonia, Wales, United Kingdom. The pilot and four passengers were fatally injured.The accident investigation is under the jurisdiction and control of the government of the United Kingdom. This report is for information purposes only and contains only information released by or obtained from the United Kingdom. Further information pertaining to this accident may be obtained from: Air Accidents Investigation Branch (AAIB) Farnborough House Berkshire Copse Road Aldershot, Hampshire GU11 2HH, United Kingdom Tel: +44 (0)1252 510300 Fax: +44 (0)1252 376999 https://www.gov.uk/government/organisations/air-accidents-investigation-branch

Full Narrative

On March 29, 2017, about 1500 coordinated universal time, an Aerospatiale AS355 F1 helicopter, G-OHCP, collided with Rhinog Fawr mountain in Snowdonia, Wales, United Kingdom. The pilot and four passengers were fatally injured.The accident investigation is under the jurisdiction and control of the government of the United Kingdom. This report is for information purposes only and contains only information released by or obtained from the United Kingdom. Further information pertaining to this accident may be obtained from: Air Accidents Investigation Branch (AAIB) Farnborough House Berkshire Copse Road Aldershot, Hampshire GU11 2HH, United Kingdom Tel: +44 (0)1252 510300 Fax: +44 (0)1252 376999 https://www.gov.uk/government/organisations/air-accidents-investigation-branch

Flight

Event TypeAccident
Event Time15:00 UTC
Nearest Airport0nm
Flight Plan FiledUnknown
Flight Plan ActivatedUnknown
Aircraft FireUnknown
Aircraft ExplosionUnknown

Aircraft

AircraftAerospatiale AS355 F1
Tail NumberG-OHCP
Aircraft CategoryHeli
DamageDestroyed
Engines2
Engine TypeTurboshaft
Engine DetailsRolls-Royce · 250-C20F · Turboshaft | Rolls-Royce · 250-C20F · Turboshaft
Seats+ 2

People & Injuries

Injury Summary5 injuries (5 fatalities)
Fatal5
Serious0
Minor0
Uninjured0
Total5

Conditions

ConditionsIMC
Wind170° @ 22 kt
Visibility4 sm
CeilingOvercast 300 ft
Temperature / Dew Point52 / 52
Altimeter29.94 inHg
Observation Time14:50
Weather SourceWFAC

Appendix: Source Data