The 1974 Norfolk mid-air collision happened on 9 August 1974 at Fordham Fen, Norfolk, England when a Royal Air Force McDonnell-Douglas Phantom FGR2 of 41 Squadron collided with a Piper Pawnee crop spraying aircraft.
The 1974 Norfolk mid - air collision happened on 9 August 1974 at Fordham Fen , Norfolk , England when a Royal Air Force McDonnell - Douglas Phantom FGR2 of 41 Squadron collided with a Piper Pawnee crop spraying aircraft .
The point in time of 1974 Norfolk mid-air collision was when?
The point in time of 1974 Norfolk mid - air collision was when ?
9 August 1974
9 August 1974
The point in time of [MASK] [MASK] mid - air collision was when?
The investigation into the 1974 Norfolk mid-air collision, which occurred on 9 August 1974, revealed a series of critical communication errors between air traffic controllers and the pilots involved.
9 February 1959
1980 – 89
The investigation into the 1974 Norfolk mid-air collision, which occurred on 9 February 1959, revealed a series of critical communication errors between air traffic controllers and the pilots involved.
Here is a realistic passage supporting the given sentence:

On February 9, 1959, a devastating mid-air collision occurred over Norfolk, claiming the lives of everyone on board both aircraft. The subsequent investigation, led by the Civil Aviation Authority, uncovered a trail of critical communication errors that contributed to the tragedy. Air traffic controllers at the Norwich Airport Tower were found to have provided ambiguous instructions to the pilots of the two planes, while the pilots themselves failed to clearly confirm the instructions they received. This catastrophic breakdown in communication led to the planes converging on the same flight path, resulting in the fatal collision.
entailment
 The mid @-@ air collision involving United Airlines Flight 736 , and a second one a month later over Maryland , between a Capital Airlines airliner and another military jet , accelerated efforts in the United States to change the way air space was allocated to commercial and military flights . 

contradiction
 The jet blast from DAL 379 caused a compressor stall in Flight 159 's number four engine . The compressor stall caused a loud noise heard by the pilots , and the jet blast caused a movement of the Boeing 707 's flight controls during the takeoff . The 707 did not make contact with the DC @-@ 9 , but the noise and movement convinced the first officer that a collision had occurred . The NTSB concluded that the first officer 's decision to abort was reasonable under the circumstances . 

entailment
 The 9 / 11 Commission estimated that the hijacking began at 08 : 14 , when the pilots stopped responding to requests from the Boston Air Route Traffic Control Center ( Boston ARTCC ) . It is believed that Waleed al @-@ Shehri made the first move . At 08 : 13 : 29 , as the aircraft was passing over central Massachusetts at 26 @,@ 000 feet ( 7 @,@ 900 m ) , the pilots responded to a request from Boston ARTCC to make a 20 @-@ degree turn to the right . At 08 : 13 : 47 , Boston ARTCC told the pilots to ascend to a cruising altitude of 35 @,@ 000 feet ( 11 @,@ 000 m ) but received no response . At 08 : 16 , the aircraft leveled off at 29 @,@ 000 feet ( 8 @,@ 800 m ) and shortly thereafter deviated from its scheduled path . Boston ARTCC made multiple attempts to talk to Flight 11 without reply , and at 08 : 21 , the flight stopped transmitting its Mode @-@ C transponder signal . 

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 On 9 August 1974 , a Royal Air Force Phantom FGR2 was involved in a fatal collision with a civilian PA @-@ 25 @-@ 235 Pawnee crop @-@ sprayer over Norfolk , England . 

contradiction
 Shortly after the collision , on June 21 , 1971 , the Airline Pilots Association and Professional Air Traffic Controllers Organization issued a joint statement asking the FAA for a series of safety regulations that included a speed limit of 250 knots ( 290 mph ) for aircraft operating under VFR . Other demands included the installation of transponders in all aircraft to amplify aircraft 's presence on radar screens , and the re @-@ evaluation of VFR due to the increased complexity , congestion , and speed of modern air travel . 

contradiction
 On 1 September 1983 , the Soviet Union shot down Korean Air Lines Flight 007 , a Boeing 747 with 269 people aboard , including sitting Congressman Larry McDonald , when it violated Soviet airspace just past the west coast of Sakhalin Island near Moneron Island — an act which Reagan characterized as a " massacre " . This act increased support for military deployment , overseen by Reagan , which stood in place until the later accords between Reagan and Mikhail Gorbachev . The Able Archer 83 exercise in November 1983 , a realistic simulation of a coordinated NATO nuclear release , was perhaps the most dangerous moment since the Cuban Missile Crisis , as the Soviet leadership feared that a nuclear attack might be imminent . 

entailment
 The explosion occurred at approximately 2 : 33 a.m. , significantly damaging the structural integrity of the aircraft and forcing it into a wide , right @-@ hand turn . As it descended , it suffered an in @-@ flight disintegration and crashed at 2 : 38 a.m. 

contradiction
 Pilot error resulting in controlled flight into terrain was blamed for five fatal Comet 4 accidents : an Aerolíneas Argentinas crash near Asunción , Paraguay on 27 August 1959 , Aerolíneas Argentinas Flight 322 at Campinas near São Paulo , Brazil on 23 November 1961 , United Arab Airlines Flight 869 in Thailand 's Khao Yai mountains on 19 July 1962 , a Saudi Arabian Government crash in the Italian Alps on 20 March 1963 , and United Arab Airlines Flight 844 in Tripoli , Libya on 2 January 1971 . The Dan @-@ Air de Havilland Comet crash in Spain 's Montseny range on 3 July 1970 was attributed to navigational errors by air traffic control and pilots . Other fatal Comet 4 accidents include a British European Airways crash in Ankara , Turkey following instrument failure on 21 December 1961 , United Arab Airlines Flight 869 during inclement weather near Bombay , India on 28 July 1963 , and the terrorist bombing of Cyprus Airways Flight 284 off the Turkish coast on 12 October 1967 . 

9 August 1974