PIA Flight 705
|Date||20 May 1965|
|Summary||Crashed during approach, excessive descent|
|Site||Cairo International Airport, Egypt|
|Aircraft type||Boeing 720-040B|
|Operator||Pakistan International Airlines|
|Flight origin||Karachi Airport, Pakistan|
|2nd stopover||Cairo International Airport, Egypt|
|Last stopover||Dhahran International Airport, Saudi Arabia|
|Destination||London Heathrow Airport, United Kingdom|
Pakistan International Airlines Flight 705 (PK705) was a Boeing 720–040B that crashed while descending to land on Runway 34 at Cairo International Airport on 20 May 20 killing 121 of the 127 passengers and crew on board. The crash marked the fourth and deadliest involving a Boeing 720, and to date is the second-deadliest aviation accident in Egypt after Flash Airlines Flight 604.
Flight 705 on 20 May 1965 was an innaugural flight between Karachi, Pakistan and London, United Kingdom and was was carrying distinguished guests and journalists among the 114 passengers. The aircraft was planned to stop at Dharan, Cairo and the Geneva before completing its journey to London. Flight 705 had departed Dhahran International Airport after a scheduled stopover for Cairo. As the pilot was on final approach to Cairo International Airport when he reported problems with his flaps, shortly afterwards the aircraft crashed south-east of the airport and broke-up as it exploded in flames. Six of the passengers were thrown clear of the wreckage but everybody else on board was killed.
The aircraft was a Boeing 720-040B registered in Pakistan as AP-AMH. The Boeing 720 had manufacturer serial number 18379 and line number 321 and was first flown on 19 October 1962 and delivered to Pakistan International Airlines on 7 November 1962. At the time of the accident the aircraft had flown 8378 hours.
On 26 May the local police reported that $120,000 of jewellery was found in the wreckage of the flight hidden in a transistor radio.
The probable cause was that The aircraft did not maintain the adequate height for the circuit and continued to descend until it contacted the ground. The reason for that abnormal continuation of descent is unknown. 
- Accident description at the Aviation Safety Network
- "121 Killed in Desert Air Disaster - Pakistan Plane Crashed on new London Route." (News). The Times (London). Friday, 20 May 1965. (56327), p. 14.
- Pither 1998, p. 213
- "£43,000 Jewels in Airliner Wreck" (News). The Times (London). Thursday, 27 May 1965. (56332), p. 11.
- ICAO Circular 88-AN/74 (113-117)
- Pither, Tony (1998). The Boeing 707 720 and C-135. England: Air-Britain (Historians) Ltd. ISBN 0 85130 236 X.