Crash of a Dornier DO.128-6 Skyservant in Kaduna: 3 killed

Date & Time: Feb 24, 1997
Type of aircraft:
Operator:
Registration:
NAF017
Flight Type:
Survivors:
No
Schedule:
Kaduna - Kaduna
MSN:
6007
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
3
Circumstances:
The crew was completing a local training flight at Kaduna-New Kaduna Airport. On final approach, the pilot-in-command lost control of the airplane that nosed down and crashed in a field located 3 km short of runway. All three crew members were killed.

Crash of a Casa 212 Aviocar 200 near Quibaxe: 37 killed

Date & Time: Feb 2, 1997 at 1730 LT
Type of aircraft:
Operator:
Registration:
T-400
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Luanda - Cafunfo
MSN:
325
YOM:
1985
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
33
Pax fatalities:
Other fatalities:
Total fatalities:
37
Circumstances:
While in cruising altitude, en route from Luanda to Cafunfo, the aircraft entered an uncontrolled descent and crashed in an open field located near Quibaxe. The aircraft disintegrated on impact and all 37 occupants were killed.
Probable cause:
The exact cause of the accident remains unknown. It was reported that the crew encountered technical problems prior to the loss of control and was unable to maintain the assigned altitude.

Crash of an Avro 748-353-2A in Tambacounda: 23 killed

Date & Time: Feb 1, 1997 at 1438 LT
Type of aircraft:
Operator:
Registration:
6V-AEO
Flight Phase:
Survivors:
Yes
Schedule:
Tambacounda - Dakar
MSN:
1769
YOM:
1979
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
49
Pax fatalities:
Other fatalities:
Total fatalities:
23
Circumstances:
The departure was delayed due to overbooking. Passengers and crew were nervous and few passengers should disembark. Following a normal takeoff roll, the pilot-in-command started the rotation. About 30 seconds later, while climbing to a height of about 100 feet, the left engine failed. The aircraft stalled and crashed less than 100 metres past the runway end, bursting into flames. The aircraft broke in two and most of the survivors were found in the rear part of the cabin while the front one disintegrated on impact. Twenty-nine people survived while 23 others, including all three crew members, were killed.
Probable cause:
The exact cause of the accident could not be determined and the official accident report was not published by the Senegal Government. Nevertheless, The determination of the causes of the accident is therefore based on the expert reports ordered by the French investigating magistrate and the position of the locking pin of the left supply valve observed after the accident. Experts conclude that the left engine has stopped due to the closing of the fuel supply valve. The poor quality of the fuel was also blamed, which, before the accident, led Air Senegal to ask a chemical engineer from Shell-Senegal to test the fuel and the refueling operations. The engineer, while noting the poor quality of the fuel, came to the same conclusions as the experts. In France, operational tests were carried out on a similar aircraft and, moreover, fuel analyzes were carried out by the Accident Investigation Bureau. To these different expertises were added those of the government of the United Kingdom, the country of the manufacturer of the aircraft, and the results of a test carried out by British Aerospace with the same aircraft. The various analyzes carried out on the drums used for refueling showed that water was not present in the drums but in the pump used for refueling. It appears that the pump had been disassembled and the filters removed before filling the aircraft's tanks. As a result, the tiny amount of water that could have been found in the tanks would not have allowed the fuel to be considered contaminated and therefore unfit for consumption. The court, considering itself sufficiently informed by all these expertises, refused to grant the civil parties a further investigation 12 years after the facts. For the magistrates, there is no doubt that the determining cause of the accident was the closure of the left fuel isolation valve. The various investigations finally made it possible to determine that a ground mechanic had carried out a technical intervention under the left wing before the departure, at the level of the engine, but the exact nature of this intervention could not be established with precision. In its judgment, the court recognized that various indirect causes may have played a role in the occurrence of this air disaster: anomalies in the storage and distribution of fuel, nervousness and intense stress generated around the aircraft due to overbooking, irritability of the captain who, impatient to take off, did not consider certain checks useful. However, the magistrates have ruled, the determining cause perfectly defined by the various experts is the closing of the isolation valve of the left engine of the aircraft. On May 14, 2009, more than 12 years after the incident, Senegalese mechanic Moustapha Diagne was sentenced to 30 months' imprisonment with a 15-month suspended sentence. The length of the firm prison sentence is the length of the pre-trial detention that the defendant, after being extradited, had already served.

Crash of an Embraer EMB-110P1A Bandeirante in Yola: 5 killed

Date & Time: Jan 31, 1997
Operator:
Registration:
5N-AXS
Survivors:
Yes
Schedule:
Jos – Yola – Maiduguri
MSN:
110-458
YOM:
1984
Location:
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
13
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
While approaching Yola Airport, the crew encountered poor weather conditions. The captain decided to abandon the approach and initiated a go-around procedure. The crew followed a holding pattern for about an hour before starting a second attempt to land. On final approach, the crew failed to realize his altitude was insufficient when the aircraft struck tree tops and a powerline before crashing 700 metres short of runway 17. All three crew members and two passengers were killed. The remaining 11 passengers were injured.
Probable cause:
The crew continued the approach below MDA until the aircraft struck obstacles and crashed.

Crash of a Boeing 707-331C in Kananga

Date & Time: Jan 16, 1997
Type of aircraft:
Registration:
P4-OOO
Flight Type:
Survivors:
Yes
Schedule:
Ostende – Kinshasa – Kananga
MSN:
19435
YOM:
1967
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
After touchdown at Kananga Airport, the right main gear collapsed. The aircraft veered off runway and came to rest, bursting into flames. All five occupants escaped uninjured while the aircraft was damaged beyond repair.
Probable cause:
Failure of the right main gear upon landing for unknown reasons.

Crash of a Swearingen SA227AC Metro III in Djerba

Date & Time: Jan 11, 1997 at 1900 LT
Type of aircraft:
Operator:
Registration:
EC-GKK
Survivors:
Yes
Schedule:
Madrid – Alicante – Djerba
MSN:
AC-730
YOM:
1989
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
19
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
After touchdown, the crew started the braking procedure when the aircraft went out of control, veered off runway and came to rest in a ditch. All 21 occupants escaped uninjured while the aircraft was damaged beyond repair.

Crash of a Douglas DC-8-55F in Port Harcourt

Date & Time: Dec 17, 1996 at 0500 LT
Type of aircraft:
Operator:
Registration:
9G-MKD
Flight Type:
Survivors:
Yes
Schedule:
Luxembourg - Port Harcourt
MSN:
45965
YOM:
1968
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
While descending to Port Harcourt Airport, the pilot-in-command established a visual contact with the runway lights at an altitude of 2,500 feet. The approach was continued when few seconds later, while the crew was thinking his altitude was 390 feet, the aircraft collided with trees. The captain decided to initiate a go-around procedure but all four engines failed to respond properly. The aircraft continued to descend and struck the ground 250 metres short of runway threshold. Upon impact, the undercarriage were torn off and the aircraft slid for few dozen metres before coming to rest. All four crew members escaped uninjured and the aircraft was damaged beyond repair. It was reported that the aircraft was unstable on final approach.

Crash of a Beechcraft C90-1 King Air in the Suikerbosrand Nature Reserve: 3 killed

Date & Time: Dec 13, 1996
Type of aircraft:
Registration:
ZS-NXY
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Heidelberg - Heidelberg
MSN:
LJ-1058
YOM:
1983
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
3
Circumstances:
The twin engine aircraft departed Heidelberg Airport for a local training flight with three pilots on board. Ten minutes after takeoff, the aircraft entered an uncontrolled descent and crashed in hilly terrain located in the Suikerbosrand Nature Reserve. All three occupants were killed.

Crash of a Boeing 767 in Moroni: 125 killed

Date & Time: Nov 23, 1996 at 1515 LT
Type of aircraft:
Operator:
Registration:
ET-AIZ
Survivors:
Yes
Schedule:
Addis Ababa – Nairobi – Brazzaville – Lagos – Abidjan
MSN:
23916
YOM:
1987
Flight number:
ET961
Region:
Crew on board:
12
Crew fatalities:
Pax on board:
163
Pax fatalities:
Other fatalities:
Total fatalities:
125
Captain / Total flying hours:
11525
Captain / Total hours on type:
4067.00
Copilot / Total flying hours:
6570
Copilot / Total hours on type:
3042
Aircraft flight hours:
32353
Aircraft flight cycles:
12623
Circumstances:
Ethiopian Airlines flight ET961 had taken off from Addis Ababa, Ethiopia, at 08:09 hours UTC for a scheduled flight to Abidjan, Ivory Coast via Nairobi, Kenya; Brazzaville, Congo; and Lagos, Nigeria. Twenty minutes after takeoff, at about 08:29 UTC, one passenger stood up from his seat and ran up the aisle to the cockpit, and two other passengers followed him heading for the cockpit. While rushing to the cockpit one of the men said "Everybody should be seated, I have a bomb!". Then they opened the cockpit door and stormed in. They declared to the pilots that there were eleven hijackers on board and beat the First Officer and forced him out of the cockpit. They then grabbed the fire axe and fire extinguisher bottle from their respective stowages and ordered the pilot-in-command to change direction and fly to Australia. The pilot-in-command explained to the hijackers that he had not enough fuel to reach Australia and demanded to make a refueling stop at Mombasa. The hijackers refused the refueling stop and continued arguing with the pilot-in-command. They insisted that they had learned from the inflight magazine that the B767 could fly 11 hours without refueling. After passing Dar es Salaam one of the hijackers ordered him to fly away from the coast, head to Australia and indicating to the altimeter not to descend below FL390. The pilot-in-command turned left towards the Comoros Island. The lead hijacker was sitting in the first officer's seat and was fiddling with the aircraft's controls, kicking the rudder, whilst also drinking whisky. The pilot-in-command kept on telling them that he was running short of fuel pointing to the fuel quantity indicators, but the hijackers did not listen. The leader continued fiddling with the controls, trying to turn the aileron and pulling the reverse thrust lever at random. As the flight came over the Comoros Islands the pilot-in-command saw the Moroni International Airport runway and circled 15-20 nm south of the field. Then the LOW FUEL CAUTION came on. The pilot-in-command pleaded to land because of low fuel. The hijackers were unconcerned and only insisted that the pilot not descend below FL390. At about 11:41 UTC the right engine ran down to wind milling speed. The pilot-in-command showed the red warning message for the right engine on the EICAS to the hijacker. At this moment, the hijacker left the right seat and went to the cabin door to discuss with the other two hijackers. This gave the captain the opportunity to pick up his microphone and address the passengers: "....ladies and gentlemen this is your pilot, we have run out of fuel and we are losing one engine this time, and we are expecting crash landing and that is all I have to say. we have lost already one engine, and I ask all passengers to react ..... to the hijackers ....". The hijacker then came back to the cockpit and hit the microphone out of the pilot's hand. After the right engine failed, the pilot started to descend the aircraft in order to increase speed, but the hijacker again interfered and violently played with the controls which resulted in improper control inputs. As a result the autopilot was disconnected and the flight became erratic with the airspeed varying between 216 and 336 kts. As the pilot regained control of the aircraft, the left engine went dead. The hijacker kept on instructing the pilot not to descend and again went to the cabin. Upon returning to the cockpit he saw that the altitude was decreasing, and angrily shouted at the pilot not to go any lower. The pilot said that the fuel was already finished and that the engines were without power. This time the hijacker instructed the captain not to touch the controls, and threatened to kill him. The captain said, "I am already dead because I am flying an airplane without engine power." The first officer, who had earlier been forced out to the First Class cabin, got up and, via the right aisle, went to the rear of the aircraft where he saw that a lot of economy class passengers had their life jackets on and that some had already inflated them. The first officer, along with the cabin crew members, helped the passengers to deflate the life jackets and showed them how the jackets should be re-inflated and how to assume the brace position during impact. While returning to the front of the aircraft, they repeated the same instructions as many times as they could. About less than 2 minutes before the ditching, the co-pilot forced his way to the cockpit shouting "let me help the pilot ...". After adjusting his seat and seat belts the pilot asked him for help since the controls were heavy. The hijackers still kept on struggling with the controls. By now, the aircraft was descending into the Indian Ocean over the Comoros Islands. The aircraft now had only standby instruments and RAT (Ram Air Turbine). The altimeter was indicating 150 feet and the airspeed was 200 kts. By this time the flight crew had been left alone to assume control. They turned the aircraft to the left in order to parallel the waves. However, the aircraft brushed the water in a left-wing-low attitude. It was then held straight and level after which it broke into four sections and came to rest in the sheltered waters 500 metres off Le Galawa Beach. Of the 175 occupants, 6 crew members and 119 passengers were fatally injured in the accident. Six crew members and 38 passengers sustained serious injuries, 2 passengers sustained minor injuries and 4 passengers received no injury.
Probable cause:
The Investigation Committee determines that the cause of this accident was unlawful interference by the hijackers which resulted in loss of engines thrust due to fuel exhaustion.
Final Report:

Crash of a Piper PA-31-310 Navajo Chieftain near Ngong: 8 killed

Date & Time: Nov 13, 1996 at 1430 LT
Type of aircraft:
Registration:
5Y-ALA
Flight Phase:
Survivors:
No
Site:
Schedule:
Nairobi - Mwanza
MSN:
31-541
YOM:
1969
Location:
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
8
Circumstances:
En route from Nairobi to Mwanza, the pilot informed ATC about an engine failure and elected to return to Nairobi-Wilson Airport. Twenty minutes after takeoff, the aircraft went out of control and crashed in the Ngong Hills, near Ngong. All eight occupants were killed.
Probable cause:
Engine failure in flight for unknown reasons.