Aeroflot - Russian International Airlines

Operator:

Registration:

CCCP-03504

Flight Phase:

Takeoff (climb)

Flight Type:

Survivors:

Site:

MSN:

1G46-13

YOM:

1964

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

7967

Aircraft flight cycles:

26952

Circumstances:

The crew was engaged in a crop spraying mission for the sovkhoz of 'Lenin' located about 45 km from Shardara, south Kazakhstan. The goal of the flight was to spray insecticides on cotton plantations. After takeoff, the engine was not running properly and the crew encountered difficulties to gain sufficient height. The airplane passed over trees at a speed lower than 120 km/h then struck the tops of poplars (30 metres high) located 2,190 metres from the departure point. The airplane stalled and crashed 35 metres further. The captain was killed instantly and the copilot, injured but stuck in the cockpit, asked for help when the engine caught fire about 3-5 minutes later. The aircraft was destroyed by fire and the copilot died.

Probable cause:

Two valves obstructed by calamine caused the engine to lose power and the aircraft to lose speed. The following contributing factors were reported:
- Aircraft usage in a dusty environment,
- High OAT,
- Poor fuel quality.

Crash of a Tupolev TU-104A in Chita

Date & Time: Jul 17, 1976

Type of aircraft:

Tupolev TU-104

Operator:

Registration:

CCCP-42335

Flight Phase:

Takeoff (climb)

Flight Type:

Survivors:

Airport (less than 10 km from airport)

Site:

Schedule:

Chita – Novosibirsk – Chelyabinsk – Moscow

MSN:

7 66 005 01

YOM:

1957

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

110

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

After a long roll at Chita-Kadala Airport, the aircraft took off very late at a speed of 275 km/h. During initial climb, it struck the embankment of a railway road located 322 metres past the runway end. It crash landed in a field, slid for dozen metres then turn to the left and came to rest. Four passengers and a flight attendant were injured while 112 other occupants escaped uninjured. The aircraft was written off.

Probable cause:

It was determined that the total weight of the aircraft was 5 tons above the MTOW at the time of the accident (75,300 kilos).

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

Date & Time: Jul 15, 1976

Type of aircraft:

Landing (descent or approach)

Operator:

Registration:

CCCP-05840

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Zmeinogorsk – Barnaul

MSN:

1G16-01

YOM:

1962

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

While descending to Barnaul on a flight from Zmeinogorsk, the engine failed. The aircraft stalled and crashed in a wooded area. There were no casualties but the aircraft was damaged beyond repair.

Probable cause:

Engine failure caused by a fuel exhaustion. When the engine stopped, the fuel gauge still showed 150 liters while the tank was empty.

Crash of a PZL-Mielec AN-2 in Chegdomyn: 1 killed

Date & Time: Jul 13, 1976 at 1056 LT

Type of aircraft:

Operator:

Registration:

CCCP-70092

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Chegdomyn - Sofyisk

MSN:

1G136-18

YOM:

1972

Flight number:

SU355

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

4178

Aircraft flight cycles:

4686

Circumstances:

Few minutes after takeoff from Chegdomyn, the engine started to lose power and to misfiring. Also, black smoke spread into the cockpit and the visibility was very limited for the pilot. The captain decided to return to Chegdomyn but realized this was not possible, he reduced his altitude and attempted an emergency landing when the airplane struck trees and crashed. Three passengers were seriously injured while nine other occupants were unhurt. Less than an hour after the accident, a young boy died from his injuries.

Probable cause:

Failure of the engine after the piston in cylinder n°1 failed in flight.

Crash of a PZL-Mielec AN-2 off Syvash

Date & Time: Jul 11, 1976

Type of aircraft:

Operator:

Registration:

CCCP-62439

Flight Phase:

Flight Type:

Survivors:

Site:

Lake, Sea, Ocean, River

MSN:

1G41-09

YOM:

1963

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

Crashed in unknown circumstances into the Syvash lagoon while flying below-minima weather conditions. There were no casualties.

Crash of a PZL-Mielec AN-2 near Bazarchay

Date & Time: Jul 1, 1976 at 1813 LT

Type of aircraft:

Operator:

Registration:

CCCP-02518

Flight Phase:

Flight Type:

Survivors:

Site:

Mountains

Schedule:

Sisian - Bazarchay

MSN:

1G119-61

YOM:

1970

Flight number:

SU133E

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

3849

Aircraft flight cycles:

6728

Circumstances:

The crew departed Sisian Airport at 1800LT bound to the east. While cruising at an altitude of 2,700 metres, weather conditions worsened and the visibility decreased due to clouds. The pilot-in-command failed to return and decided to continue when the airplane struck the Mt Kysyrdag (2,987 metres high). The aircraft was destroyed by a post crash fire and both occupants were killed. The wreckage was found at an altitude of 2,750 metres.

Probable cause:

Failure of the crew to continue the flight into limited visibility due to clouds in violation with the published procedures.

Crash of a PZL-Mielec AN-2 near Sakhapta: 2 killed

Date & Time: Jul 1, 1976 at 0655 LT

Type of aircraft:

Operator:

Registration:

CCCP-55791

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Sakhapta - Sakhapta

MSN:

1G51-04

YOM:

1964

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

7740

Circumstances:

The crew was completing a crop spraying flight on behalf of the sovkhoz of Sakhaptinsky. While flying at a height of 50 meters, the pilot-in-command initiated a right turn to an angle of 20-25° when the engine started to misrunning. The airplane lost height then struck the ground in a right bank of 45° and came to rest 74 metres further. All three occupants were seriously injured. The technician died three days later and the copilot died six days later.

Probable cause:

The engine started to misrunning when the pilot-in-command initiated a turn to the right as the engine was connected to the left tank that was quit empty at that time.

Crash of a PZL-Mielec AN-2R in Valikhanovo: 3 killed

Date & Time: Jun 30, 1976 at 1215 LT

Type of aircraft:

Operator:

Registration:

CCCP-70531

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Valikhanovo - Valikhanovo

MSN:

1G145-07

YOM:

1973

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

2486

Aircraft flight cycles:

10995

Circumstances:

On a test flight from Valikhanovo after an engine repair during crop-spraying operations in the Valikhanovo district (Kokchetau region of Kazakhstan) when one of the propeller blades broke away in flight due to fatigue fracture, causing violent vibration, whereupon the engine mount failed. The aircraft turned to the left and the propeller cut through the spar of the left lower wing, causing the wing box to collapse. Aircraft went out of control and span into a field 2 km SSW of the "Yuzhny" collective farm (at N52°33' E71°36'). Both pilots and the sole passenger (an aircraft mechanic) were killed. The propeller had been fitted only the day before the accident.

Probable cause:

Propeller blade's separated in flight.

Crash of a PZL-Mielec AN-2R in Amangeldy: 1 killed

Date & Time: Jun 27, 1976

Type of aircraft:

Operator:

Registration:

CCCP-70481

Flight Phase:

Takeoff (climb)

Flight Type: