ASN Wikibase Occurrence # 224671
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| Date: | Thursday 2 May 2019 |
| Time: | 12:17 LT |
| Type: | Glaser-Dirks DG-505 Elan Orion |
| Owner/operator: | Private |
| Registration: | JA505G |
| MSN: | 5E174X26 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | 500 m south of Mt. Yake, Matsumoto city, Nagano prefecture -
 Japan
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Hida Air Park, Takayama city, Gifu prefecture |
| Investigating agency: | JTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A glider made a force landing at 500 meters south from the peak of Mt. Yake, Nagano prefecture. The glider took off from Hida Air Park at 11:44 LT. At 13:15, the pilot onboard reported to the glider club in Tokyo by a cell phone that the glider made a force landing. He was not sure the landing site, but suggested that it may be west of Mt. Yake. Both occupants receive no injuries. After that call, no contact with occupants could not establish. Search and rescue on the first day was unsuccessful. The accident site was located 06:20 LT next morning by a helicopter of Japan Air Self-Defense Force, and both occupants were picked up. The aft fuselage was broken and the right wing was missing. JTSB launched an investigation as an aircraft accident. The pilot reported down draft before the crash.
PROBABLE CAUSES
This accident occurred while flying ridge soaring, the Glider wandered into the downdraft zone on the lee side of the ridge and lost altitude. As the captain tried to make a forced landing to the forest, it is highly probable that the Glider collided with trees, causing damage.
Concerning the reason why the Glider wandered into the downdraft zone on the lee side of the ridge, it is highly probable that he lost his position because the captain did not have sufficient knowledge on the landscape as he had never flown and additionally he was flying without confirming the heading and position with instruments.
Accident investigation:
 |
|
Sources:
https://www3.nhk.or.jp/news/html/20190502/k10011904081000.html
https://www3.nhk.or.jp/news/cat01.html?utm_int=all_header_menu_news-social#!/2/
https://headlines.yahoo.co.jp/hl?a=20190503-00000109-kyodonews-soci
https://jtsb.mlit.go.jp/jtsb/aircraft/detail2.php?id=2238
https://flyteam.jp/photo/2636457
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-May-2019 09:49 | isamuel | Added |
| 03-May-2019 19:05 | isamuel | Updated [Location, Source, Damage, Narrative] |
| 08-May-2019 14:29 | isamuel | Updated [Aircraft type, Registration, Cn, Source, Narrative] |
| 27-Sep-2020 12:41 | harro | Updated [Time, Narrative, Category, Accident report] |
| 27-Sep-2020 12:41 | harro | Updated [Aircraft type, Accident report] |
| 27-Sep-2020 12:43 | harro | Updated [Narrative, Accident report] |
| 27-Sep-2020 12:45 | harro | Updated [Time, Source, Accident report] |
| 27-Sep-2020 12:48 | harro | Updated [Accident report] |
| 27-Sep-2020 12:49 | harro | Updated [Source, Accident report] |
| 27-Sep-2020 12:55 | harro | Updated [Source, Accident report] |
Corrections or additions? ... Edit this accident description
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