Scheduled Revenue Flight

Operator:

Registration:

CCCP-70092

Flight Phase:

Flight Type:

Survivors:

Site:

Plain, Valley

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.

Ground explosion of a Boeing 720-047B in Beirut: 1 killed

Date & Time: Jun 27, 1976

Type of aircraft:

Boeing 720

Operator:

Registration:

OD-AGE

Flight Phase:

Parking

Flight Type:

Survivors:

Site:

Schedule:

Amman - Beirut

MSN:

18963/433

YOM:

1965

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

After all passengers disembarked at Beirut International Airport following a schedule service from Amman, the airplane was apparently struck by a mortar shell and exploded. A crew member was killed while two others were injured. The aircraft was damaged beyond repair.

Probable cause:

Damaged beyond repair by a mortar shell.

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

Date & Time: Jun 26, 1976 at 0811 LT

Type of aircraft:

Operator:

Registration:

CCCP-70764

Flight Phase:

Takeoff (climb)

Flight Type:

Survivors:

Site:

Landing (descent or approach)

Schedule:

Kazan - Cheremshan

MSN:

1G132-19

YOM:

1971

Flight number:

SU349

Location:

Kazan

Republic of Tatarstan

Country:

Russia

Region:

Asia

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

4323

Circumstances:

Shortly after takeoff from Kazan Airport, while climbing, the crew encountered engine problems. The captain decided to maintain a low altitude and initiated a turn to the left when the engine failed completely 18 seconds later. While turning to the left at an angle of 20-27° and at a speed of 135 km/h, the airplane stalled, struck telephone wires and crashed in flames. The captain was killed while 10 other occupants were injured. The aircraft was destroyed.

Probable cause:

Engine failure at low height after takeoff over a populated area. The main cause of engine failure was a rupture of the cylinder n°8, which caused a leak and overheating. The presence of cracks in the right magneto slider BSM-9 also contributed to the engine failure. This caused the fuel-air mixture in the intake manifold to ignite.

Crash of a Douglas DC-9-31 in Philadelphia

Date & Time: Jun 23, 1976 at 1712 LT

Type of aircraft:

Douglas DC-9

Operator:

Registration:

N994VJ

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Providence – Windsor Locks – Philadelphia – Nashville – Memphis

MSN:

47333/481

YOM:

1969

Flight number:

AL121

Location:

Philadelphia

Pennsylvania

Country:

United States of America

Region:

North America

Crew on board:

Crew fatalities:

Pax on board:

102

Pax fatalities:

Other fatalities:

Total fatalities:

Captain / Total flying hours:

25000

Captain / Total hours on type:

6000.00

Copilot / Total flying hours:

11000

Copilot / Total hours on type:

6000

Aircraft flight hours:

21320

Circumstances:

Allegheny Airlines Flight 121, a Douglas DC-9-31, suffered a landing accident on the Philadelphia International Airport, Pennsylvania. Of the 106 persons onboard, 86 persons were injured; there were no fatalities. The captain of Flight 121 had conducted an instrument approach to runway 27R in visual conditions as a thunderstorm passed over the airport in a north-northeasterly direction. When near the threshold the captain initiated a go-around from a low altitude and entered rain of increasing intensity. Shortly thereafter the aircraft was seen descending in a nose-up attitude with the landing gear retracted. After striking tail first on a taxiway about 4,000 feet beyond the threshold of runway 27, the aircraft slid about 2,000 feet and stopped. The wreckage came to rest about 6,000 feet beyond the threshold and about 350 feet to the right of the centerline of runway 27R.

Probable cause:

The aircraft's encounter with severe horizontal and vertical wind shears near the ground as a result of the captain's continued approach into a clearly marginal severe weather condition. The aircraft's ability to cope under these conditions was borderline when flown according to standard operating procedures; however, if the aircraft's full aerodynamic and power capability had been used, the wind shear could probably have been flown through successfully. Contributing to the accident was the tower controller's failure to provide timely below-minimum RVR information.

Final Report:

Crash of a PZL-Mielec AN-2R in Nizhneangarsk: 5 killed

Date & Time: Jun 12, 1976 at 1332 LT

Type of aircraft:

Landing (descent or approach)

Operator:

Registration:

CCCP-32464

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Nizhneangarsk – Novy Uoyan – Angarakan – Nizhneangarsk

MSN:

1G99-31

YOM:

1969

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

6144

Circumstances:

On approach to Nizhneangarsk Airport, the crew encountered low clouds. The visibility was limited and the crew lost visual contact with ground. While at an altitude of 150 metres, the airplane struck tree tops and crashed in flames in a wooded area located 4 km short of runway. The aircraft was destroyed by a post crash fire and while two passengers were seriously injured, all five other occupants were killed.

Probable cause:

The accident was the consequence of the crew’s violation of the rules for flight operations in accordance with the published procedures established by ULP. Weather and ATC were not considered as contributing factors.

Crash of a Cessna 402 near Summit Lake: 2 killed

Date & Time: Jun 11, 1976 at 0750 LT

Type of aircraft:

Cessna 402

Operator:

Registration:

N4049Q

Flight Phase:

Flight Type:

Douglas C-47 Skytrain (DC-3)

Survivors:

Site:

Plain, Valley

Schedule:

Anchorage - Seward

MSN:

402-0149

YOM:

1967

Location:

Summit Lake

Alaska

Country:

United States of America

Region:

North America

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Captain / Total flying hours:

4000

Captain / Total hours on type:

72.00

Circumstances:

While cruising parallel to the Seward - Anchorage highway at an altitude of 1,000 feet, the twin engine airplane collided with a Kenai Civil Air Patrol Beechcraft A-45 Mentor registered N1406Z. Engaged in a SAR mission after a Cessna 170 was missing, the Mentor was carrying two pilots. Following the collision, both aircraft dove into the ground and crashed. All four occupants were killed.

Probable cause:

Collision with other aircraft in normal cruise. The following contributing factors were reported:
- Failed to see and avoid other aircraft,
- Pilot of other aircraft,
- Not under radar contact,
- No control.

Final Report:

Crash of a Douglas C-47A-90-DL near Carauari: 3 killed

Date & Time: Jun 11, 1976

Type of aircraft:

Operator:

Registration:

PP-AJC

Flight Phase:

Flight Type:

Survivors: