The U.S. aircraft register, updated daily
Accidents · NTSB SEA05WA203 · Preliminary: the investigation is not finished

Hughes 269C accident near Daisen, Ja, September 27, 2005

On September 27, 2005 at about 8:35 am local time, a Hughes 269C (helicopter), registered JA7670, was destroyed in an accident near Daisen. It was an instructional flight under non-U.S. private rules. 2 people were killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
September 27, 2005 · about 8:35 am local time
Place
Daisen, JA
Type
Accident
Injuries
2 people were killed.
Weather
visual conditions (good weather)
Aircraft
Hughes 269C · all 269Cs on the register
Registration
JA7670 · no longer on the register
Damage
Destroyed
Flight
Instructional flight · non-U.S. private rules

The factual record from the NTSB's investigation tables, in plain English

The aircraft

  • Landing gear: fixed

The flight

  • Departed from: Yamagata Airpor at 7:40 am
  • Flight plan: none

Weather at the time

  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew2

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.