Country
Poland

Crash of a PZL-Mielec AN-2R near Nyagan

Date & Time: Sep 18, 2013 at 1337 LT
Type of aircraft:
PZL-Mielec AN-2
Operator:
Taks-Avia
Registration:
RA-33017
Flight Phase:
Flight
Flight Type:
Charter/Taxi (Non Scheduled Revenue Flight)
Survivors:
Yes
Site:
Plain, Valley
Schedule:
Surgut – Saranpaul – Arbyn – Surgut
MSN:
1G218-04
YOM:
1986
Location:
Nyagan
Khantia-Mansia okrug
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
5277
Aircraft flight cycles:
24822
Circumstances:
The aircraft departed Surgut on September 12 on a special flight to Saranpaul and Arbyn, carrying two pilots and five employees of the Sosvapromgeologya Company. On September 18, the crew was supposed to fly back to Surgut but due to poor weather conditions, decided to fly to Nefteyugansk. About an hour and 10 minutes into the flight, while cruising at an altitude of 700 metres, the engine temperature increased to 305° C. and the oil temperature to 90° C. In the same time, the engine lost power. The crew decided to reduce his altitude and to attempt an emergency landing when the aircraft crash landed in a field located 48 km west of Nyagan. There was no fire. All seven occupants were injured and the aircraft was damaged beyond repair.
Probable cause:
Most probably the accident with An-2 RA-33017 aircraft was caused by usage of uncoordinated automative fuel not specified by valid aircraft maintenance engineering documentation with low octane grade, mechanical admixture (rusting) that resulted in cylinder-heads temperature increase beyond operating limits, engine power loss, unintentional flight altitude decrease and the need of an emergency landing on saturated terrain.
The contributing factors could be:
- Unsatisfactory management of storage, refiling procedures and fuel quality inspection at Arbyn Airfield,
- Incorrect PIC's decision to perform a flight after detection of deviation from standards in fuel quick drain (color, consistency, mechanical mixtures).

Crash of a PZL-Mielec AN-2R in Kamako

Date & Time: Sep 13, 2013 at 1150 LT
Type of aircraft:
PZL-Mielec AN-2
Operator:
Registration:
9Q-CFT
Flight Phase:
Landing (descent or approach)
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Airport (less than 10 km from airport)
Schedule:
Tshikapa - Kamako
MSN:
1G223-14
YOM:
1987
Location:
Kamako
Kasai-Occidental
Country:
Democratic Republic of Congo
Region:
Africa
Crew on board:
1
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
16798
Captain / Total hours on type:
16000.00
Aircraft flight hours:
6981
Circumstances:
Following an uneventful flight from Tshikapa, the pilot initiated the approach to Kamako Airfield in relative good conditions. On final, the wind component suddenly changed. The aircraft lost height and impacted ground 16 metres short of runway 12. Upon impact, the undercarriage were partially torn off and the aircraft slid before coming to rest 37 metres past the runway threshold. All six occupants, one pilot and five passengers, escaped uninjured while the aircraft was damaged beyond repair.
Probable cause:
It was determined that the loss of control that occurred on short final was the result of the combination of a human error and weather component. The pilot was surprised by the abrupt change in weather conditions on short final to Kamako runway 12. He elected to initiate a go-around procedure and increased engine power but unfortunately, low level windshear caused the aircraft to lose height and to struck the ground as its speed was insufficient. In consequence, the increase power was too low to allow the pilot to maintain the approach profile. The torsion of the blades confirmed that the engine was at full power for a go-around procedure at impact. The absence of a windsock at Kamako Airfield was considered as a contributing factor as this would help the pilot to recognize the wind component and to decide to land or to go-around in due time.
Final Report:

Crash of a PZL-Mielec AN-2TP near Vilyuisk

Date & Time: Aug 16, 2013 at 1345 LT
Type of aircraft:
PZL-Mielec AN-2
Operator:
Registration:
RA-01419
Flight Phase:
Flight
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Plain, Valley
Schedule:
Vilyuisk - Kyubeinde-Ugulet
MSN:
1G230-59
YOM:
1988
Flight number:
PI9977
Location:
Vilyuisk
Republic of Yakutia (Sakha)
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
9
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
3973
Captain / Total hours on type:
480.00
Copilot / Total flying hours:
374
Copilot / Total hours on type:
52
Aircraft flight hours:
7587
Aircraft flight cycles:
10148
Circumstances:
Few minutes after takeoff from Vilyuisk Airport, on a schedule service (flight n° PI9977) to Kyubeinde-Ugulet, while cruising at an altitude of about 400 metres, the engine overheated and lost power while the oil pressure dropped. The crew decided to return to Vilyuisk when the engine failed shortly later. The captain attempted an emergency landing in a swampy area located 26 km northwest of Vilyuisk (at N63°54.584" E121°18.048"). The main wheels got stuck in soft ground, the engine was ripped off, and the aircraft came to rest, bursting into flames. Both pilots and all 9 passengers escaped uninjured and the aircraft was totally destroyed by fire.
Probable cause:
The accident with An-2Т RA-01419 aircraft was caused by emergency landing at the landing place in marsh area selected from air that resulted in main landing gear dipping in soft ground, dynamic pitch-down moment followed by engine ground impact and fuselage separation along engine mounting fitting, airframe structure and gear damage. Gasoline pipeline destruction during engine separation from aircraft frame and gasoline ingestion on the hot parts of power unit caused fire which almost completely destroyed the aircraft. Wrong PIC's actions who didn't turn off ignition and shut off fuel before aircraft landing could contribute to the fire. The emergency landing at the landing place selected from air was caused by oil temperature increase and pressure drop below specified by the aircraft FOM values in flight. It wasn't possible to determine the cause of temperature increase and oil pressure drop due to engine component substantial damage during fire.
Final Report:

Crash of a PZL-Mielec AN-2P in Shakhty

Date & Time: Jul 28, 2013
Type of aircraft:
PZL-Mielec AN-2
Operator:
Registration:
FLA-3618K
Flight Phase:
Takeoff (climb)
Flight Type:
Test
Survivors:
Yes
Site:
Airport (less than 10 km from airport)
Schedule:
Shakhty - Shakhty
MSN:
1G151-37
YOM:
1973
Location:
Shakhty
Rostov oblast
Country:
Russia
Region:
Asia
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Shortly after takeoff from Shakhty Airport, Rostov oblast, the pilot encountered engine problem. He elected to make an emergency landing in an open field located 500 metres from the airport. On touchdown, the aircraft lost its undercarriage, wings and tail before coming to rest in bushes. The pilot, uninjured, fled the scene but was arrested by police few hours later. Technician by a Plant at the Shakhty Airport, he was the owner of this aircraft since seven months and was performing a local test flight despite he was not in possession of any valid pilot licence according to Russian authorities.

Crash of a PZL-Mielec AN-2R in Pyatykhatki

Date & Time: Jul 21, 2013 at 0635 LT
Type of aircraft:
PZL-Mielec AN-2
Operator:
Albatross Avia
Registration:
UR-ART
Flight Phase:
Flight
Flight Type:
Spraying (Agricultural)
Survivors:
Yes
Site:
Plain, Valley
MSN:
1G234-55
YOM:
1989
Location:
Pyatikhatki
Autonomous Republic of Crimea
Country:
Ukraine
Region:
Europe
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The crew was completing a crop spraying flight in the Krasnoperekopsk District of the autonomous Republic of Crimea. While flying at a height of about 35-40 metres, the engine failed. The crew attempted an emergency landing in a rice paddy field near Pyatykhatki but the wheels got stuck in the soft ground and the aircraft nosed over, coming to rest upside down. While both occupants escaped uninjured, the aircraft was damaged beyond repair.
Probable cause:
A loss of engine power caused by the failure of the valve on cylinder n°9 that remained in open position due to an excessive deposit of calamine (soot).
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