code
Bas-Congo

Crash of a Yakovlev Yak-40D in Boma: 5 killed

Date & Time: Jul 17, 1994
Type of aircraft:
Operator:
Registration:
RA-87256
Survivors:
Yes
Schedule:
Kinshasa - Boma
MSN:
9 31 13 26
YOM:
1973
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
5
Aircraft flight hours:
27402
Aircraft flight cycles:
22752
Circumstances:
The aircraft landed 45 metres past the runway 21 threshold at Boma Airfield (runway 21 is 1,082 metres long). The crew started the braking procedure and both engines n°1 & 3 were shut down after a course of about 400-500 metres. At a distance of 200 metres from the runway end, the captain elected to veer to the right to avoid an overrun when the aircraft went down an embankment and came to rest in a 8 metres deep ravine, bursting into flames. Four people were injured and five others were killed. The aircraft was destroyed.
Probable cause:
Wrong approach configuration on part of the crew who landed at an excessive speed. The following contributing factors were reported:
- Poor efficient braking,
- The aircraft speed upon landing was exceeding the aircraft flight manual,
- Uncoordinated actions of the crew on the application of the main and emergency braking that were used simultaneously which is non compliant with published procedures,
- Erroneous shutdown of the central engine (n°2) during the first half of run.

Crash of a Britten-Norman BN-2A-7 Islander near Kasangulu

Date & Time: Aug 7, 1975
Type of aircraft:
Registration:
9Q-CYB
Flight Phase:
Survivors:
Yes
MSN:
633
YOM:
1971
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
En route, the pilot encountered technical problems and was forced to attempt an emergency landing. The twin engine airplane crashed 16 km from Kasangulu and was damaged beyond repair. There were no casualties.

Crash of a Curtiss CW-20T in Thysville

Date & Time: Jan 13, 1964
Type of aircraft:
Operator:
Registration:
SE-CFF
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
53
YOM:
1944
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The aircraft failed to takeoff from Thysville Airport and crashed in a field. Both crew members were unhurt while the aircraft was written off. They were engaged in a humanitarian flight on behalf of the UNO.

Crash of a De Havilland DH.89A Dragon Rapide in Luozi

Date & Time: Jun 20, 1960 at 1005 LT
Operator:
Registration:
OO-ARN
Survivors:
Yes
Schedule:
Léopoldville – Luozi – Boma
MSN:
6785
YOM:
1936
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
6
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
1686
Captain / Total hours on type:
500.00
Circumstances:
The twin engine airplane departed Léopoldville on a regular scheduled service to Boma with an intermediate stop in Luozi. On board were one pilot and six passengers including a child. Following a normal approach, the aircraft touched down 560 metres past the runway threshold which is marked by concrete curbs. The aircraft bounced several times and veered off course to the right. At the point where the curbs mark the end of the runway threshold, the right wing grazes the tall grass along the runway edge. Due to erosion caused by rainwater, the right wheel enters a dip between the runway surface and the right edge of the runway threshold. The impact of the right wheel against the concrete edge of the runway threshold further accentuated the rightward deviation, and the aircraft veered off runway and entered the grassy lateral clearance area. After a course of about 30 metres, the left wheel strikes a hole, causing the left main landing gear to collapse. The airplane came to a stop, bursting into flames. All seven occupants escaped, the pilot and a passenger were slightly injured. The airplane was totally destroyed by fire.
Probable cause:
The accident resulted from a combination of the following factors:
- The pilot’s improper use of the runway. Although a 1,172-meter runway was available, the pilot landed the aircraft 560 metres from the runway threshold.
- Poor judgment on the part of the pilot who should have either corrected the aircraft’s rightward deviation in a timely manner or taken off again when he realized the landing was being performed under defective conditions.
- Very poor piloting technique during the landing.
Final Report:

Crash of a De Havilland DH.89A Dragon Rapide in Thysville

Date & Time: Jun 5, 1951
Registration:
ZS-ATV
Flight Phase:
Survivors:
Yes
MSN:
6914
YOM:
1945
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The twin engine airplane departed Leopoldville in the morning on a flight to Angola, carrying one passenger, an aerial photographer, and three crew members, one pilot, one navigator and one mechanic. En route, the crew encountered marginal weather conditions and because the airplane was not equipped with radio communication system or radiocompas, the pilot decided to land at Thysville Airfield (now Mbanza-Ngungu). After the airplane was refueled, the pilot started the takeoff procedure from a grassy 593-meter long runway. The airplane rolled on the entire distance then rolled outside the runway, in tall grass, causing the right wheel to detach. The airplane continued to climb with a speed of 80 mph then started to descend as its speed was decreasing to 60 mph. In a constant left turn, the pilot attempted an emergency landing 4 km southwest of the airfield. The airplane came to a halt, bursting into flames. All four occupants escaped uninjured while the airplane was totally destroyed by fire.
Probable cause:
The exact cause of the accident could not be determined with certainty. Nevertheless, investigators have not ruled out the following two possibilities: the plane may have been overloaded, or the engine may have lacked power due to the type of fuel used, 60/120 menasol, a product typically used in gasoline stoves.
Final Report:

Crash of a Caudron C.282 Phalène in Dila: 1 killed

Date & Time: Mar 19, 1938 at 1130 LT
Type of aircraft:
Operator:
Registration:
OO-MCE
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
6667.5
YOM:
1933
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
After takeoff, the airplane encountered difficulties to gain height. It impacted bushes and crashed. One occupant was killed and the second was injured.

Crash of a De Havilland DH.80 Puss Moth off Muanda: 1 killed

Date & Time: Aug 6, 1933
Operator:
Registration:
CH-326
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Cape Town - Croydon
MSN:
2211
YOM:
1931
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
The pilot was attempting a world record from Cape Town to Croydon. While flying over the delta of the Congo River, the single engine aircraft crashed in unknown circumstances off Muanda, Bas Congo. The pilot was killed.