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| Date: | Thursday 27 July 2023 |
| Time: | 15:00 LT |
| Type: |  Mil Mi-8T |
| Owner/operator: | Altai Avia |
| Registration: | RA-24474 |
| MSN: | 98628796 |
| Year of manufacture: | 1986 |
| Total airframe hrs: | 11492 hours |
| Fatalities: | Fatalities: 6 / Occupants: 16 |
| Other fatalities: | 0 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Tyungur, Ust-Koksinsky district, Altai Republic -
 Russia
|
| Phase: | Landing |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | Belukha Mountain area |
| Tyungur | |
| Investigating agency: | MAK |
| Confidence Rating: |  Accident investigation report completed and information captured |
A Altai Avia Mil Mi-8T struck a utility pole and crashed when attempting to land near the Tyungur village, Ust-Koksinsky district, Altai Republic.
Conclusion
The aviation accident involving the Mi-8T RA-24474 helicopter occurred during the day under visual meteorological conditions while landing on a site chosen from the air. The accident resulted from a collision between the aircraft's tail boom and tail rotor with a reinforced concrete power line support and the subsequent collision of the helicopter with the ground.
Contributing factors included:
- Choosing a landing site without considering a safe distance to obstacles;
- Failing to account for the influence of a gusty tailwind;
- Unwarranted execution of a turn while hovering before landing;
- Uncontrolled lateral movement of the helicopter before landing;
- Insufficient caution by the pilot-in-command during landing;
- Likely exceeding the maximum tailwind speed limits during hovering and turning.
Accident investigation:
 |
|
Sources:
https://mak-iac.org/rassledovaniya/mi-8t-ra-24474-27-07-2023/
https://www.themoscowtimes.com/2023/07/27/4-killed-in-siberian-helicopter-crash-a81980
https://tass.ru/proisshestviya/18380049
https://tass.ru/proisshestviya/18377265
https://t.me/mchs_official/10264
Final Report: https://mak-iac.org/upload/iblock/539/cu7tvhjwf83u8jb9jkv2qgnm1b0qxbsf/report_ra-24474.pdf
https://russianplanes.net/images/to319000/318507.jpg (photo)
History of this aircraft
Ex CCCP-24474
Location
Images:
Photo: MAK
Media:
⚡️Video showing a passenger Mi-8 helicopter crashing in Altai (Russia) this morning.
— War Monitor (@WarMonitors) July 27, 2023
Six people died and seven were injured. pic.twitter.com/uBVFzKLx6E
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Jul-2023 09:22 | harro | Added |
| 27-Jul-2023 09:25 | harro | Updated |
| 27-Jul-2023 11:47 | RobertMB | Updated |
| 27-Jul-2023 12:37 | Iceman 29 | Updated |
| 27-Jul-2023 14:12 | vasilf | Updated |
| 27-Jul-2023 14:41 | Hans Gruber | Updated |
| 27-Jul-2023 21:01 | Aerossurance | Updated |
| 02-Aug-2023 07:48 | Hans Gruber | Updated |
| 17-May-2024 08:45 | Hirurg | Updated [Time, Source] |
| 17-May-2024 09:13 | ASN | Updated [Total fatalities, Narrative, Category, Accident report] |
| 17-May-2024 09:15 | ASN | Updated [Departure airport, Narrative, Photo] |
Corrections or additions? ... Edit this accident description
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