Scheduled Revenue Flight

Survivors:

Site:

City

Schedule:

Khartoum - Monrovia

MSN:

1755

YOM:

1978

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

After takeoff from Khartoum-Haj Yusuf Airport, while in initial climb, the right engine failed. The crew declared an emergency and was cleared to return for an emergency landing. While completing a turn, the airplane lost height and crashed in a district located about 4 km southeast of the airport. The aircraft and several buildings were destroyed. The flight engineer was seriously injured while eight other occupants and nine people on ground were killed. Eight other people on the ground were injured as well.

Probable cause:

High Pressure fuel pump quillshaft broke due to pump seizure. The remaining engine produced not enough power because the fuel datum trimmer wasn't reset in accordance with the flight manual.

Crash of a Britten-Norman BN-2A-8 Islander in Selawik: 2 killed

Date & Time: Apr 7, 1983 at 1456 LT

Type of aircraft:

Britten-Norman Islander

Operator:

Registration:

N37MN

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Nome - Selawik - Ambler

MSN:

558

YOM:

1977

Flight number:

XY601

Location:

Selawik

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:

11054

Captain / Total hours on type:

1598.00

Aircraft flight hours:

6674

Circumstances:

According to the FAA specialist on duty at the Nome flight service station the pilot of Munz Northern flight 601 requested only the Ambler weather at 0030 gmt. The only surviving passenger stated that the flight departed Nome, AK at 1330 bst and as the flight continued north she could only see straight down and was nervous because the ground was so close. She further stated that the props changed their sound which related to the sound they made earlier in the flight when the aircraft climbed to clear a mountain. She also added that they were in whiteout conditions prior to impact and there were no mechanical irregularities that she was aware of. The pilot and a passenger were killed.

Probable cause:

Occurrence #1: in flight encounter with weather
Phase of operation: cruise
Findings
1. (f) weather forecast - not obtained - pilot in command
2. (f) weather condition - whiteout
3. (c) VFR flight into IMC - inadvertent - pilot in command
4. (f) weather condition - snow
5. (c) VFR flight into IMC - continued - pilot in command
----------
Occurrence #2: in flight collision with terrain/water
Phase of operation: climb
Findings
6. (f) terrain condition - high terrain

Final Report:

Crash of a Britten-Norman BN-2A-26 Islander in Panama

Date & Time: Apr 6, 1983

Type of aircraft:

Britten-Norman Islander

Operator:

Registration:

HP-945

Flight Type:

MSN:

914

YOM:

1980

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

Crashed in unknown circumstances somewhere in Panama.

Crash of a Let L-410M in Poti: 6 killed

Date & Time: Mar 29, 1983 at 1518 LT

Type of aircraft:

Let L-410

Operator:

Registration:

CCCP-67190

Flight Phase:

Takeoff (climb)

Flight Type:

Survivors:

Site:

Schedule:

Poti - Sukhumi

MSN:

78 11 19

YOM:

1978

Flight number:

SU070G

Location:

Poti

Samegrelo-Zemo Svaneti

Country:

Georgia

Region:

Asia

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

3206

Aircraft flight cycles:

6096

Circumstances:

14 seconds after liftoff from runway 10 at Poti Airport, while climbing to a height of 60 meters at a speed of 195 km/h, both engines lost 60% of power. While the power on the left engine increased to 94,5% 11 seconds later, the power on the right engine dropped to zero. The crew elected to feather the right propeller but this was not possible. The airplane lost height, started a descent and slightly turned to the right when, at a speed of 130 km/h, it struck 20 meters high trees and crashed in a wooded area located 450 meters past the runway end. Two pilots and four passengers were killed while 12 other occupants were injured. The aircraft was destroyed.

Probable cause:

It was determined that the malfunction of the right engine was the consequence of a short-term failure of the rotor speed regulator, which forced the crew to shut down the engine and to feather the propeller. For unknown reasons, the propeller could not be feathered, causing drag that reduced the aircraft's speed and necessitating an emergency landing.

Crash of a Boeing 737-2B1 in Quelimane

Date & Time: Mar 28, 1983

Type of aircraft:

Boeing 737-200

Operator:

Registration:

C9-BAB

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Maputo - Quelimane

MSN:

20281

YOM:

1969

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

104

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

The approach to Quelimane Airport was initiated by night. On final, the pilot-in-command reduced engine power to idle. At a height of 230 feet, as the airspeed dropped below the speed reference, the stick shaker activated. The captain increased engine power when the aircraft lost height and descended until it struck the ground about 400 meters short of runway. The undercarriage were torn off and the airplane slid for few dozen meters before coming to rest. All 110 occupants evacuated safely while the aircraft was damaged beyond repair.

Probable cause:

Wrong approach configuration on part of the flying crew who misjudged speed, distance and altitude on final approach. The crew failed to properly use the Visual Approach Slope Indicators which was considered as a contributing factor.

Crash of a PZL-Mielec AN-2 in Vanavara

Date & Time: Mar 24, 1983

Type of aircraft:

PZL-Mielec AN-2

Operator:

Registration:

CCCP-29367

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Oskoba - Vanavara

MSN:

1G78-09

YOM:

1967

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

While approaching Vanavara, the aircraft lost height and crashed in a wooded area located few km from the airfield. There were no casualties.

Probable cause:

Loss of control following an engine failure in flight for unknown reasons.

Crash of a Britten-Norman BN-2A-3 Islander in Iran

Date & Time: Mar 17, 1983

Type of aircraft:

Britten-Norman Islander

Operator:

Registration:

EP-PAC

Flight Type:

MSN:

273

YOM:

1971

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

Crashed in unknown circumstances somewhere in Iran.

Crash of a NAMC YS-11A-208 in Nakashibetsu

Date & Time: Mar 11, 1983 at 1615 LT

Type of aircraft:

NAMC YS-11

Operator:

Registration:

JA8693

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Sapporo - Nakashibetsu

MSN:

2060

YOM:

1968

Flight number:

WJ497

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Captain / Total flying hours:

6530

Captain / Total hours on type:

2792.00

Copilot / Total flying hours:

4759

Copilot / Total hours on type:

1217

Aircraft flight hours:

31305

Circumstances:

Following an uneventful flight from Sapporo, the crew started the descent to Nakashibetsu Airport in marginal weather conditions. On final, while completing a last turn to the left at an angle of 30°, the aircraft struck the ground and crash landed in a snow covered field (40 cm deep snow). It slid for few dozen meters and came to rest 100 meters short of runway 23 threshold, broken in two. 31 occupants were injured and 22 other occupants escaped uninjured.

Probable cause:

The pilot-in-command misjudged altitude and distance while completing the approach in low ceiling. Improper control of the engine power was a contributing factor.

Crash of a Douglas DC-9-32 in Barquisimeto: 23 killed

Date & Time: Mar 11, 1983 at 0700 LT

Type of aircraft:

Douglas DC-9

Operator:

Registration:

YV-67C

Flight Phase:

Flight Type:

Survivors:

Site: