Narrative:The undercarriage wouldn't lock up after takeoff, so the crew recycled the gear a couple of times. On the third attempt, the bogie (which was not rotating in the right sequence) fouled the main hydraulic jack fracturing the attachment bolt of the shuttle valve for the main and emergency 'down' hydraulic lines. All hydraulic fluid escaped and the gear couldn't be extended anymore. An emergency landing was carried out on a foamed runway at Manston.
PROBABLE CAUSE: "The undercarriage failed to lock down due to loss of the hydraulic fluid from the main and emergency systems. This resulted from fracture of the hydraulic lines consequent upon fouling of the port undercarriage retraction jack head by the bogie through incorrect setting up of the retraction sequence valve."
» Flight International 04.07.1968 (p.9)
» ICAO Circular 88-AN/74 Volume II (156-166)
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not
display the exact flight path.
Distance from London-Heathrow Airport to Kuwait International Airport as the crow flies is 4641 km (2900 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.