ASN Wikibase Occurrence # 211914
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| Date: | Thursday 7 June 2018 |
| Time: | 15:26 LT |
| Type: |  Eurocopter AS 350B3 Écureuil |
| Owner/operator: | Excel Air Service |
| Registration: | JA350D |
| MSN: | 3467 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | East China Sea, 10 nm SE of Aguni Airport -
 Japan
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Okinawa-Naha Airport (OKA/ROAH) |
| Aguni Airport (AGJ/RORA) | |
| Investigating agency: | JTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A Eurocopter AS 350B3 ditched in the East China Sea, 10 nm southeast of Agni Airport, or 40 km nothwest of Naha, Okinawa prefecture, Japan. The Écureuil took off from Naha at 15:12 LT to pick up (a) passenger(s) at Aguni. A distress signal was received by Japan Air Self-Defense Force at 15:28 LT. A search and rescue helicopter of Japan Air Self-Defense Force found the pilot and parts of wreckage at 15:50 LT. The sole pilot was rescued and sent to the hospital. The pilot states a pain on chest, however apparently had no major injuries.
PROBABLE CAUSES:
In this accident, it is probable that NR of the main rotor was reduced during the flight and flight altitude became unable to maintain, which led to ditching at the excessive speed and descent rate and caused damage to the airframe, followed by sinking.
It is somewhat likely that the reduced NR of the main rotor was caused by some kind of malfunction occurring with engine system; however, it could not be determined in which section of the engine malfunction occurred and what caused it.
Accident investigation:
 |
|
Sources:
https://headlines.yahoo.co.jp/hl?a=20180607-00264022-okinawat-oki
https://headlines.yahoo.co.jp/hl?a=20180607-00000022-ryu-oki
https://headlines.yahoo.co.jp/hl?a=20180607-00050105-yom-soci
https://okinawa3j.excel-air.com/posts/news4.html
http://aerossurance.com/helicopters/as350b3-ditching-japan/
Location
Images:
Figure: JTSB
Media:
JTSB on AS350B3 Ditching: highlights the benefit of practical emergency drills and careful consideration of survivability issues. https://t.co/797bEk1zU4 #helicopter #accident #flightsafety #aviationsafety pic.twitter.com/OGwju0kyRR
— Aerossurance (@Aerossurance) March 28, 2021
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 07-Jun-2018 14:56 | isamuel | Added |
| 07-Jun-2018 17:37 | Anon. | Updated [Location] |
| 08-Jun-2018 08:26 | Aerossurance | Updated [Aircraft type, Location, Narrative] |
| 27-Feb-2020 15:27 | harro | Updated [Time, Departure airport, Narrative, Photo, Accident report, ] |
| 27-Mar-2021 15:06 | Aerossurance | Updated [Source] |
| 28-Mar-2021 08:07 | Aerossurance | Updated [Embed code] |
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