Pohang Marineon crash
1st Marine Division MUH-1 Marineon · Lightning, explosion
Event
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- Event fatalities
- 5 · all aircraft and ground
- Ground fatalities
- Unknown
- Occupants
- Unknown
- Survivors
- 1
- InjuriesFatal: death within 30 days. Serious: over 48 hours in hospital within a week, most broken bones, severe bleeding, nerve or organ damage, or serious burns. Minor: anything less. Glossary
- 2
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- Military
MUH-1 Marineon
- Aircraft type
- Muh MARINEON
- Category
- Helicopter · from aircraft type
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- 2호기
- Operator
- 1st Marine Division
- Onboard fatalities
- 5
- Route
- From not recordedTo not recorded
Cause areas
- Aircraft › Aircraft propeller/rotor
From the investigation findings the Wikipedia article reports, sorted into the NTSB's cause areas with AI assistance.
Approximate · Estimated position: Pohang, the place the Wikipedia article names. Not the accident site.
From the Wikipedia article
The Pohang Marineon crash was an accident at 16:45 on 17 July 2018 in which a Marineon Marine Corps operational helicopter crashed onto a taxiway of Pohang Airport, killing 5 people.
Investigation and cause
Cause
Lawyer Park Young-jin, representing the bereaved families of the deceased crew, claimed on the basis of the accident-site CCTV that less than 1 minute after take-off the main rotor separated and flew off and the aircraft crashed. The CCTV released by the Marine Corps also confirmed that one of the rotor blades fell off first, and that it struck and broke the shaft connecting the rotor hub and the fuselage. On this basis, some claim that an airframe defect or poor maintenance was the cause.
However, the manufacturer, Korea Aerospace Industries, mentions pilot error.
It was announced that the rotor mast, which connects the blades to the motor gear, had a defect and broke easily, and
The 'interim investigation' released on 21 September concluded that the cause was a defect that occurred in the manufacturing process of the 'rotor mast' supplied by Eurocopter and Eurocopter's partner Aubert ＆ Duval.
Translated into English with AI assistance from the Korean Wikipedia article “포항 마린온 추락 사고” (revision 41753677, retrieved 2026-09-19) by its authors, under CC BY-SA 4.0. Extracted as plain text: references, tables, images and some sections are left out; the translation may contain errors, and long articles were cut to their first 700 words. Read the article
Sources
Korean Wikipedia article: 포항 마린온 추락 사고
- Article
- 포항 마린온 추락 사고
- Translation
- Into English with AI assistance; names of linked operators and aircraft types from Wikidata. It may contain errors.
- Revision
- 41753677 · 2026-05-07 · retrieved 2026-09-19
- Wikidata
- Q55735552
- Licence
- Text CC BY-SA 4.0, by the article's authors; Wikidata CC0; town positions GeoNames (CC BY 4.0)
Where each value comes from
- Record
- ko Wikipedia article "포항 마린온 추락 사고" (page 1994801, revision 41753677), translated into English with AI assistance
- Date
- Wikipedia infobox: date
- Place and country
- Wikipedia infobox: site
- Map position
- place the Wikipedia infobox site links (Wikidata coordinates)
- Aircraft, operator and route
- Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports)
- Operation
- operator named as an armed force or military unit in the infobox
- Fatalities
- Wikipedia infobox: aircraft fatalities
- Ground fatalities
- not stated in the Wikipedia infobox
- Summary
- Wikipedia infobox: summary
Source notes (1)
- Wikipedia · Facts from the Korean Wikipedia article's infobox, translated into English with AI assistance, not checked against an investigation report. Independent review pending.