ASN Wikibase Occurrence # 202670
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| Date: | Thursday 7 December 2017 |
| Time: | 13:15 LT |
| Type: |  Eurocopter AS 350B3 Ecureuil |
| Owner/operator: | Private |
| Registration: | RA-07277 |
| MSN: | 4514 |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | near Chistiy, Bratsk district -
 Russia
|
| Phase: | En route |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | Bratsk Airport (BTK/UIBB) |
| Chistye Prudy | |
| Investigating agency: | MAK |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter crashed on the frozen surface of the Angara River. Both occupants died.
Conclusion:
Most likely, the accident with the Eurocopter AS350B3 RA-07277 was due to the loss of control of the helicopter while flying in conditions of limited visibility, out of sight of the horizon and landmarks. It was not possible to unambiguously determine the cause of the loss of control.
Possible reasons could be: loss of spatial orientation by the pilot in flight conditions for which he was not prepared, or partial or complete loss of performance in flight caused by cardiovascular pathologies, or a combination of these reasons.
The contributing factors, most likely, were:
- unfounded decision by the pilot to continue the flight in conditions for which he was not prepared;
- significant psychoemotional load during flight in conditions of limited visibility;
No signs of failure of the helicopter onboard systems and assemblies were identified until the accident.
Accident investigation:
 |
|
Sources:
https://chelorg.com/2017/12/08/in-the-irkutsk-region-carry-out-an-inspection-after-the-incident-with-the-helicopter/
http://irkutsk.bezformata.ru/listnews/poiski-s-vozduha-vertoleta-v-irkutskoj/63277569/
____________________
http://spotters.net.ua/file/?id=79322
https://aviaforum.ru/threads/reestr-vertoletov-eurocopter.25164/page-3
____________________
http://www.interfax.ru/russia/591248
http://www.ntv.ru/novosti/1960484/
https://mak-iac.org/en/rassledovaniya/as-350-ra-07277-07-12-2017/
Location
Images:
Photo: MAK
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 08-Dec-2017 13:20 | Armitec | Added |
| 08-Dec-2017 13:56 | Iceman 29 | Updated [Cn, Operator, Source, Narrative, Photo, ] |
| 08-Dec-2017 15:30 | Aerossurance | Updated [Time, Aircraft type, Location] |
| 11-Dec-2017 12:41 | Iceman 29 | Updated [Total fatalities, Other fatalities, Location, Embed code, Damage, Narrative] |
| 11-Dec-2017 13:40 | Armitec | Updated [Time, Destination airport, Source, Damage, Narrative] |
| 05-Apr-2018 10:13 | gerard57 | Updated [Total fatalities, Other fatalities, Source, Narrative] |
| 24-Oct-2020 17:53 | harro | Updated [Departure airport, Narrative, Category, Accident report, Photo] |
| 29-Jun-2022 06:42 | Hirurg | Updated [Time, Operator] |
Corrections or additions? ... Edit this accident description
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