9 fatalities

NTSB Appoints Representative for 2018 Bell 412EP Helicopter Accident in Japan

Nakanojo, Japan

On August 10, 2018, a BELL 412EP was involved in an aviation accident near Nakanojo, Japan. 9 people were killed. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

The U.S. NTSB appointed an accredited representative to assist Japan's investigation of a Bell 412EP helicopter accident that occurred on August 10, 2018, under ICAO Annex 13.

Overview of the Accident Notification The government of Japan informed the U.S. National Transportation Safety Board (NTSB) about an accident involving a Bell 412EP helicopter. The incident took place on August 10, 2018. ## U.S. Involvement in the Investigation In accordance with the provisions of ICAO Annex 13, the NTSB appointed a U.S. Accredited Representative. This representative was tasked with assisting the government of Japan in its investigation of the accident. ## Release of Investigative Information The source states that all investigative information related to the accident will be released by the government of Japan. No further details regarding the aircraft's registration, operator, specific location, or cause are provided in the source.