Narrative:
An Antonov 2 biplane sustained substantial damage when it impacted a church during a forced landing accident at Sanamer, Stavropol Territory, Russia.
The aircraft was on a positioning flight from Kevsala (Ipatovo district of the Stavropol region) to Gribnoye, carrying four drums of oil. While flying at low altitude the engine failed. The pilot carried out a forced landing at Sanamer. The aircraft ran over a fence and came to rest against a church.
The airplane did not have a valid Certificate of Airworthiness at the time of the accident.
Conclusion (translated from Russian):
The aircraft accident with the aircraft An-2s/x RA-56528 occurred due to the collision of the aircraft with an obstacle during the forced landing. The necessity of the forced landing was caused by the engine self-absorption during the flight, most probably due to the oil tank bloating and its wall pressing on the engine stop-crane lever on the carburetor.
The increase in pressure in the oil tank and its bloating were the result of deposits of soot in the drainage pipe connecting the oil tank with the atmosphere.
Contributing factors:
- Absence of the tank flushing, including the tank drainage pipeline with the atmosphere provided for by the periodic maintenance after 400±30 hours of flight or 12±1 month of operation;
- Maintenance of aircraft by persons who do not have a certificate of a maintenance and repair specialist;
- performance of the flight over the locality at an altitude that does not allow landing outside the locality in case of aircraft malfunction;
- performance of the flight by an aircraft under the influence of alcoholic intoxication of the average degree.
All engine powerloss
Forced landing outside airport
» Southern Investigative Department of the Investigative Committee on Transport of the Russian Federation
» Lifenews.ru
accident date: 18-05-2015
type: Antonov An-2R
registration: RA-56528
accident date: 18-05-2015
type: Antonov An-2R
registration: RA-56528
accident date: 18-05-2015
type: Antonov An-2R
registration: RA-56528
accident date: 18-05-2015
type: Antonov An-2R
registration: RA-56528
accident date: 18-05-2015
type: Antonov An-2R
registration: RA-56528
| Status: | Accident investigation report completed and information captured |
| Date: | Monday 18 May 2015 |
| Time: | 09:12 |
| Type: |  Antonov An-2R |
| Operator: | private |
| Registration: | RA-56528 |
| MSN: | 1G183-28 |
| First flight: | 1979 |
| Engines: | 1 Shvetsov ASh-62IR |
| Crew: | Fatalities: 0 / Occupants: 1 |
| Passengers: | Fatalities: 0 / Occupants: 0 |
| Total: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Aircraft fate: | Written off (damaged beyond repair) |
| Location: | Sanamer, Stavropol Territory ( Russia)
|
| Phase: | En route (ENR) |
| Nature: | Ferry/positioning |
| Departure airport: | ? |
| ? |
An Antonov 2 biplane sustained substantial damage when it impacted a church during a forced landing accident at Sanamer, Stavropol Territory, Russia.
The aircraft was on a positioning flight from Kevsala (Ipatovo district of the Stavropol region) to Gribnoye, carrying four drums of oil. While flying at low altitude the engine failed. The pilot carried out a forced landing at Sanamer. The aircraft ran over a fence and came to rest against a church.
The airplane did not have a valid Certificate of Airworthiness at the time of the accident.
Probable Cause:
Conclusion (translated from Russian):
The aircraft accident with the aircraft An-2s/x RA-56528 occurred due to the collision of the aircraft with an obstacle during the forced landing. The necessity of the forced landing was caused by the engine self-absorption during the flight, most probably due to the oil tank bloating and its wall pressing on the engine stop-crane lever on the carburetor.
The increase in pressure in the oil tank and its bloating were the result of deposits of soot in the drainage pipe connecting the oil tank with the atmosphere.
Contributing factors:
- Absence of the tank flushing, including the tank drainage pipeline with the atmosphere provided for by the periodic maintenance after 400±30 hours of flight or 12±1 month of operation;
- Maintenance of aircraft by persons who do not have a certificate of a maintenance and repair specialist;
- performance of the flight over the locality at an altitude that does not allow landing outside the locality in case of aircraft malfunction;
- performance of the flight by an aircraft under the influence of alcoholic intoxication of the average degree.
Accident investigation:
 |
|
Classification:
Flightcrew member's alcohol, drug usageAll engine powerloss
Forced landing outside airport
Sources:
» MAK» Southern Investigative Department of the Investigative Committee on Transport of the Russian Federation
» Lifenews.ru
Photos
accident date: 18-05-2015
type: Antonov An-2R
registration: RA-56528
accident date: 18-05-2015
type: Antonov An-2R
registration: RA-56528
accident date: 18-05-2015
type: Antonov An-2R
registration: RA-56528
accident date: 18-05-2015
type: Antonov An-2R
registration: RA-56528
accident date: 18-05-2015
type: Antonov An-2R
registration: RA-56528
Video, social media
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http://t.co/W0Y7yOijns pic.twitter.com/sBYX1QOi0i
— Newstracker.ru (@NewstrackerSMI) May 18, 2015???????? ????????? ????????? ?????????????? ?? ? ??-2 ?? ???????????
http://t.co/vN3WSkbwCH pic.twitter.com/hgTCgP80xU
— Newstracker.ru (@NewstrackerSMI) May 18, 2015This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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