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| Date: | Saturday 25 May 2024 |
| Time: | 16:30 LT |
| Type: |  Schleicher ASK13 |
| Owner/operator: | KIT Aviation Club, Kyushu Institute of Technology |
| Registration: | JA2189 |
| MSN: | 13526 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Other fatalities: | 0 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Higotai Park, Tajiri, Ubuyama village, Kumamoto prefecture -
 Japan
|
| Phase: | Initial climb |
| Nature: | Training |
| Departure airport: | Aso Temporary Airfield |
| Aso Temporary Airfield | |
| Investigating agency: | JTSB |
| Confidence Rating: |  Information is only available from news, social media or unofficial sources |
A glider crash landed on a field in Higotai Park. The glider took off from Aso Temporary Airfield by aerotow, but the pilot released his saleplane 15 to 20 minutes later since the wire rope became loose. The departure airfield was too far to be reached. The sole pilot, a student of Kyushu Institute of Technology, suffered unspecified injuries and was airlifted to the hospital. Video at the scene shows the left wing was broken apart at the middle point and the right wing tip was also torn off. The right horizontal stabilizer, the nose and the canopy were damaged as well.
PROBABLE CAUSES
The JTSB concludes that in this accident, it is highly probable that during the forced landing attempt, the glider was unable to descend and land sufficiently as the site was on a downslope, the glider overshot, and the wing came into contact with a tree and fell, causing damage to the glider.
The reason why the glider required forced landing attempt was the glider was towed at excessive speed, and at decreased climb rate, caused slack in towline making difficult for the glider to stay in tow, and the glider pilot released because the glider pilot felt it was dangerous, and the release point was too low and most likely could not come back to the operation site.
The reason why the glider was towed at excessive speed and at a low altitude, as the aerotow speed limit for the glider had not been confirmed between the glider and tow pilots during the pre- flight briefing, was the tow pilot more likely not taking into account the altitude required for the glider to fly back and the aerotow speed limit for the glider
Accident investigation:
 |
|
Sources:
https://nordot.app/1167047734258549122
https://www.yomiuri.co.jp/national/20240525-OYT1T50137/
https://www.asahi.com/articles/ASS5T3PXKS5TTPJB002M.html?iref=pc_national_top
https://www3.nhk.or.jp/news/html/20240525/k10014460741000.html
https://www.asahi.com/articles/ASS5V1HNTS5VTLVB008M.html?iref=pc_national_top
https://jtsb.mlit.go.jp/jtsb/aircraft/detail2.php?id=2388
History of this aircraft
Other occurrences involving this aircraft
| 10 October 2021 | JA2189 | Kitakyushu Glider Club | 0 | Aso Tourism Ranch landing field, Kumamoto prefecture | |
unk |
| Runway excursion | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-May-2024 14:01 | isamuel | Added |
| 26-May-2024 07:44 | isamuel | Updated [Source, Narrative, ] |
| 28-May-2024 10:57 | isamuel | Updated [Source, ] |
| 09-Jul-2025 11:08 | ASN | Updated [Aircraft type, Narrative, Accident report, ] |
Corrections or additions? ... Edit this accident description
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