Boeing 707

Operator:

Registration:

YR-ABN

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Paris – N’Djamena

MSN:

19379

YOM:

1968

Location:

N'Djamena

N'Djamena Capital City

Country:

Chad

Region:

Africa

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

Following an uneventful cargo flight from Paris, the crew completed the landing on runway 05 by night. After touchdown, the crew started the braking procedure and selected spoilers and reverse thrust. The aircraft started to veer to the left so the captain decided to reduce the use of the reverse thrust systems. On a wet runway surface, the aircraft was unable to stop within the remaining distance and overran at a speed of 10 knots. The aircraft sank on soft ground and the left main gear collapsed. The aircraft came to rest about 50 metres past the runway end and was damaged beyond repair. All six crew members escaped uninjured.

Probable cause:

It was determined that the reverse thrust system failed on engine n°4.

Crash of a Boeing 707-3F9C in Kiri Kasama: 3 killed

Date & Time: Dec 19, 1994 at 1906 LT

Type of aircraft:

Operator:

Registration:

5N-ABK

Flight Phase:

Flight

Flight Type:

Survivors:

Site:

Plain, Valley

Schedule:

Jeddah - Kano

MSN:

20669

YOM:

1972

Flight number:

WT9805

Location:

Country:

Region:

Crew on board:

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Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

31477

Circumstances:

The aircraft was on a cargo flight from Jeddah (JED) to Kano (KAN). The total cargo uplift was 35 tonnes packed in 13 pallets and some loose bundles of merchandise that were loaded in the lower cargo hold. The departure from Jeddah was delayed for thirteen hours because of problems starting the n°4 engine. The Boeing 707 departed at 13:48 UTC. As the aircraft approached N'Djamena at FL350, about 17:00 UTC, the flight engineer noted a strange smell in the cockpit. The ground engineer and the loadmaster who were sitting in the cargo compartment area of the aircraft confirmed that the smell had persisted for a while around them. It appeared that the area around pallet number 11 was misty. The pallet was sprayed with a fire extinguisher and the smoke evacuation procedure was carried out. This stopped the fumes temporarily. The aircraft was now halfway between N'Djamena and Kano with about 40 minutes flight time to go. At 18:00 the flight was cleared to descend. Then the Master Warning sounded, followed one minute later by a Fire Warning. Smoke entered the cabin. A descent was initiated with a descent rate close to 3,000 feet per minute. Later the pitch trims became ineffective before the aircraft crashed into marshland. Tire ground marks at the scene of the accident indicated that the aircraft must have descended very slowly into the elephant grass and may have somersaulted on contact with the water, then exploded and disintegrated along the wreckage trail. Both loadmasters were killed as well as one crew member. Both other occupants were injured.

Probable cause:

The probable cause of this accident was a heat generating substance that was hidden in a cargo of fabrics inside pallet n°11 in the cargo compartment of the aircraft. The heat that emanated from the pallet resulted in smoke that caused a major distraction in the cockpit and later caused an explosion which seriously impaired the flight controls of the aircraft.

Crash of a Boeing 707-324C in São Paulo

Date & Time: Oct 9, 1994 at 1742 LT

Type of aircraft:

Operator:

Registration:

HK-3355X

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Campinas - Santa Cruz

MSN:

18886

YOM:

1965

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

After takeoff from Campinas-Viracopos Airport, while climbing, the crew informed ATC about technical problems and was cleared to divert to São Paulo-Guarulhos Airport for an emergency landing. On final, both main landing gears were lowered but apparently not locked while the nose gear remained stuck in its main wheel. Upon touchdown on runway 09L, the aircraft sank on its belly and slid for few dozen metres before coming to rest. All five occupants escaped uninjured while the aircraft was damaged beyond repair.

Probable cause:

It was determined that the hydraulic pump n°2 on the engine n°3 failed after takeoff, causing an oil leak and a loss of hydraulic pressure. The undercarriage could be lowered but not locked down while the crew attempted to lower the nose gear manually but doing so, caused the locking pin to obstruct and damage the landing gear extension system. It was also reported that several seals located on hydraulic lines were broken and have not been replaced during the last C check.

Crash of a Boeing 707-327C in Amsterdam

Date & Time: Jul 26, 1993

Type of aircraft:

Operator:

Registration:

OD-AFY

Flight Phase:

Taxiing

Flight Type:

Survivors:

Site:

Schedule:

Amsterdam - Beirut

MSN:

19108

YOM:

1966

Flight number:

MV172

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

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Total fatalities:

Circumstances:

While taxiing at Amsterdam-Schiphol Airport, the crew heard a loud bang and returned to the apron. Investigations revealed major damages to the right main gear and wing structure after the trunnion support beam of the right main gear failed.

Probable cause:

The incident was the consequence of long term corrosion and metal fatigue cracks.

Crash of a Boeing 707-387B in Recife

Date & Time: Jan 31, 1993

Type of aircraft:

Operator:

Registration:

LV-ISA

Flight Phase:

Flight Type:

Scheduled Revenue Flight

Survivors:

Site:

Schedule:

Maceió – Fortaleza

MSN:

19238

YOM:

1966

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

156

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

En route from Maceió to Fortaleza, while in cruising altitude, the crew reported hydraulic problems and was cleared to divert to Recife-Guararapes Airport for an emergency landing. On approach, the crew was forced to lower the gear manually but it was not possible to establish if they were locked down or not. In accordance with ATC, the crew completed a low pass over the airport and ATC confirmed all three gear were down. A second approach was completed and the aircraft landed smoothly. Nevertheless, following a course of few dozen metres, the right main gear 'collapsed' and entered its wheel well. The aircraft rolled to the right, veered off runway then struck a concrete block, causing the nose gear to collapse. All 168 occupants were evacuated safely while the aircraft was damaged beyond repair.

Crash of a Boeing 707-321C in Abidjan

Date & Time: Jan 15, 1993 at 0217 LT

Type of aircraft:

Operator:

Registration:

YR-ABM

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Dakar - Abidjan

MSN:

19272

YOM:

1967

Flight number:

RK153

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

The approach to Abidjan-Félix Houphouët Boigny Airport was completed by night with a reduced visibility to 1,250 metres due to low isolated clouds. On short final, the aircraft struck the ground 30 metres short of runway 21 threshold. Upon impact, the undercarriage were torn off and the aircraft slid on its belly for few dozen metres before coming to rest. All six crew members evacuated safely while the aircraft was damaged beyond repair.

Crash of a Boeing 707-365C in Manaus

Date & Time: Nov 26, 1992 at 0226 LT

Type of aircraft:

Operator:

Registration:

PT-TCP

Flight Phase:

Flight Type:

Survivors:

Site: