ASN Wikibase Occurrence # 263474
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| Date: | Friday 30 June 2017 |
| Time: | 19:38 LT |
| Type: |  Robinson R44 |
| Owner/operator: | AirLane |
| Registration: | RA-04175 |
| MSN: | 1570 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Kyzyl Bayrak -
 Russia
|
| Phase: | En route |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | |
| Investigating agency: | MAK |
| Confidence Rating: |  Accident investigation report completed and information captured |
The R44 helicopter emergency landed in a field. The tail boom broke in the accident.
The accident with the R-44 RA-04175 helicopter occurred during a forced landing caused by engine failure as a result of the destruction of the sixth cylinder elements due to spontaneous loosening of the connecting rod crank cover bolt nuts. It was not possible to determine the reason for the spontaneous loosening of the nuts.
The contributing factors were most likely:
- making a forced landing on a field with soft, soggy ground, which created the danger of the helicopter nosing;
- disproportionate pulling of the cyclic step handle, which led to the impact of the HB blades with the tail boom.
Accident investigation:
 |
|
Sources:
MAK
Location
Images:
Photo: MAK
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 31-May-2021 19:53 | harro | Added |
| 31-May-2021 19:56 | harro | Updated [Aircraft type, Operator, Total occupants, Phase, Narrative, Category, Photo] |
| 12-Nov-2023 11:10 | harro | Updated [Nature, Source] |
Corrections or additions? ... Edit this accident description
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