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| Date: | Thursday 27 April 2017 |
| Time: | 11:58 LT |
| Type: |  Aérospatiale AS 350B1 Écureuil |
| Owner/operator: | Nakanihon Air Service |
| Registration: | JA9743 |
| MSN: | 2077 |
| Year of manufacture: | 1996 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | Toubetsu, Teshikaga Town, Kawakami-gun, Hokkaido -
 Japan
|
| Phase: | En route |
| Nature: | Agricultural |
| Departure airport: | Toubetsu |
| Toubetsu | |
| Investigating agency: | JTSB |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
Under slung load dropped due to chaffed and misrigged release unit control cable.
Accident investigation:
 |
|
Sources:
http://aerossurance.com/helicopters/misrigged-heslo-usl-control/
http://www.mlit.go.jp/jtsb/eng-air_report/JA9743.pdf
Location
Media:
#OTD 2017: Misrigged release cable chaffed and released the load while manoeuvring. https://t.co/oDaP1KyXMT #helicopter #heslo #aviationsafety #flightsafety pic.twitter.com/F7T2LMMKK2
— Aerossurance (@Aerossurance) April 27, 2021
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Jun-2018 13:59 | Aerossurance | Added |
| 30-Jun-2018 14:43 | Aerossurance | Updated [Date, ] |
| 17-Jul-2018 19:52 | harro | Updated [Narrative, ] |
| 27-Apr-2021 06:22 | Aerossurance | Updated [Embed code, ] |
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