ASN Wikibase Occurrence # 319598
This accident is missing citations or reference sources. Please help add citations to guard against copyright violations and factual inaccuracies.
| Date: | Monday 30 July 2018 |
| Time: | 20:30 |
| Type: |  Antonov An-2SX |
| Owner/operator: | private |
| Registration: | RA-40649 |
| MSN: | 1G213-56 |
| Year of manufacture: | 1985 |
| Total airframe hrs: | 4447 hours |
| Engine model: | Shvetsov ASh-62IR |
| Fatalities: | Fatalities: 0 / Occupants: 7 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Evenki district, Krasnoyarsk Krai -
 Russia
|
| Phase: | Take off |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | MAK |
| Confidence Rating: |  Accident investigation report completed and information captured |
The Antonov An-2 operated on private fishing trip flights in the Evenki district. The pilots landed the aircraft on a strip of grass on the bank of the river Yangeto to pick up the passengers.
On takeoff the engine shuddered and lost power. The aircraft then struck the bank on the other side of the river, causing serious damage.
Conclusion:
The aircraft accident with An-2C/X RA-40649 occurred as a result of a rough landing with increased vertical speed during an emergency landing, the need for which was caused by a drop in engine power. The loss of engine power occurred due to destruction of the exhaust manifold flame pipe, which resulted in loss of engine power on takeoff due to penetration of hot exhaust gases through a 30% open carburetor flap. The damage to the flame tube of the exhaust manifold is most likely of a fatigue nature and is associated with unacceptable damage to the holes for the bolts fixing it to the flexible manifold. In the process of flame tube repair, the repair technology was violated when performing the crack repair operation, which led to material overheating and softening. A contributing factor was the lack of a site suitable for a forced landing in the immediate vicinity of the takeoff path.
Accident investigation:
 |
|
Sources:
Location
Images:
photo (c) MAK Interstate Aviation Committee (IAC); Evenki district, Krasnoyarsk Krai; 2018
Revision history:
| Date/time | Contributor | Updates |
|---|
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation