Accident
Last updated: 29 July 2014
Status:Definitief
Datum:maandag 26 november 1979
Tijd:02:04
Type:Silhouette image of generic B703 model; specific model in this crash may look slightly different
Boeing 707-340C
Luchtvaartmaatschappij:Pakistan International Airlines - PIA
Registratie: AP-AWZ
Constructienummer: 20275/844
Bouwjaar: 1970
Aantal vlieguren:30710
Motoren: 4 Pratt & Whitney JT3D-3B
Bemanning:slachtoffers: 11 / inzittenden: 11
Passagiers:slachtoffers: 145 / inzittenden: 145
Totaal:slachtoffers: 156 / inzittenden: 156
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:48 km (30 mijl) N of Taif (   Saudi-ArabiŽ) show on map
Fase: Kruisvlucht (ENR)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Jeddah-King Abdulaziz International Airport (JED/OEJN), Saudi-ArabiŽ
Vliegveld van aankomst:Karachi International Airport (KHI/OPKC), Pakistan
Vluchtnummer: 740
Beschrijving:
Flight PK740 departed Jeddah at 01:29 for a flight to Karachi. The aircraft was climbing to FL370 when, at 01:47, a stewardess reported a fire near the aft cabin passenger door. The crew started a descent from FL300 and were cleared to descend to 4000 feet. Following a mayday call at 02:03 nothing more was heard from the flight. The aircraft crashed in a level rocky area at an elevation of 3000 feet and burst into flames.

PROBABLE CAUSE: "An in-flight fire in the cabin area which, through its intensity and rapid extension, resulted in panic among the passengers and smoke in the cockpit, eventually incapacitating the flight crew. The cause of the cabin fire was not determined."
It was considered that the origin of the cabin fire could have been a leaking gasoline or kerosene stove, carried aboard by Haj pilgrim passengers. Pressure differential could have caused a poorly sealed gasket to leak fuel.
A second possibility is an electrical fire, but the rapid extension of the fire was considered difficult to explain because of the electrical circuit protection devices of the Boeing 707. Sabotage was considered as another possibility, but no evidence of use of an incendiary device was found.

Bronnen:


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photo of Boeing 707-340C AP-AWZ
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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Jeddah-King Abdulaziz International Airport en Karachi International Airport bedraagt 2860 km (1788 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkís opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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Boeing 707

  • 72e ongeval
  • 858 built
  • 3e zwaarste ongeval
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 Saudi-ArabiŽ
  • zwaarste ongeval (toen het plaatsvond)
  • 3e zwaarste ongeval (op dit moment)
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