1988 Sadamisaki Peninsula US military helicopter crash
United States Marine Corps Sikorsky CH-53 Sea Stallion · Descended too low while flying under visual flight rules in dense fog
From Iwakuni Kintaikyo Airport (IWK) to Futenma Air Base
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
- 7 · all aircraft and ground
- Ground fatalities
- Unknown
- Occupants
- Unknown
- Survivors
- 0
- 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
- 0
- 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
Sikorsky CH-53 Sea Stallion
- Aircraft type
- Sikorsky CH-53
- 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
- Unknown
- Operator
- United States Marine Corps
- Onboard fatalities
- 7
- Route
- From Iwakuni Kintaikyo Airport (IWK)To Futenma Air Base
Not plotted · Not plotted: the Wikipedia article gives no coordinates, and its site names no town or airport that matches exactly.
From the Wikipedia article
The 1988 Sadamisaki Peninsula US military helicopter crash (1988-nen Sadamisaki-hantō beigun heri tsuiraku jiko) was an aviation accident in which a United States Marine Corps CH-53 flying from Iwakuni Air Base to Futenma Air Base crashed on the Sadamisaki Peninsula, Ehime Prefecture, at around 10:20 am on Saturday 25 June 1988.
The crash site was about 800 m in a straight line from the Ikata Nuclear Power Plant, located on the same peninsula. Moreover, not only the local farmers who owned the land but even the press and members of the Diet were barred from entering the accident site, on the grounds that it was "in accordance with matters agreed by the Japan-US Joint Committee under the Status of Forces Agreement of the Japan-US Security Treaty".
Translated into English with AI assistance from the Japanese Wikipedia article “1988年佐田岬半島米軍ヘリ墜落事故” (revision 100672574, 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
Japanese Wikipedia article: 1988年佐田岬半島米軍ヘリ墜落事故
- Article
- 1988年佐田岬半島米軍ヘリ墜落事故
- Translation
- Into English with AI assistance; names of linked operators and aircraft types from Wikidata. It may contain errors.
- Revision
- 100672574 · 2024-06-09 · retrieved 2026-09-19
- Wikidata
- Q20044550
- 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
- ja Wikipedia article "1988年佐田岬半島米軍ヘリ墜落事故" (page 3223330, revision 100672574), translated into English with AI assistance
- Date
- Wikipedia infobox: date
- Place and country
- Wikipedia infobox: site
- Map position
- none
- 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 article lead
Source notes (1)
- Wikipedia · Facts from the Japanese Wikipedia article's infobox, translated into English with AI assistance, not checked against an investigation report. Independent review pending.