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The Tenerife airport disaster occurred on 27 March 1977, when two Boeing 747 passenger jets collided on the runway at Los Rodeos Airport[1] (now Tenerife North Airport) on the Spanish island of Tenerife.[2][3] The collision occurred when KLM Flight 4805 initiated its takeoff run while Pan Am Flight 1736 was still on the runway. The impact and resulting fire killed everyone on board KLM 4805 and most of the occupants of Pan Am 1736, with only 61 survivors in the front section of the aircraft.[2][3] Resulting in 583 fatalities, the disaster is the deadliest accident in aviation history.

Tenerife airport disaster
KLM Flight 4805 · Pan Am Flight 1736
Wreckage of the KLM aircraft on the runway at Los Rodeos
Accident
Date27 March 1977
SummaryRunway collision in fog
Site
Los Rodeos Airport
(now Tenerife North Ciudad de La Laguna Airport)
Tenerife, Canary Islands, Spain
28°28′53.94″N 16°20′18.24″W
Total fatalities583
Total injuries61
Total survivors61
First aircraft

PH-BUF, the KLM Boeing 747-206B
involved in the accident
TypeBoeing 747-206B
NameRijn ("Rhine")
OperatorKLM Royal Dutch Airlines
IATA flight No.KL4805
ICAO flight No.KLM4805
Call signKLM 4805
RegistrationPH-BUF
Flight originAmsterdam Airport Schiphol
Amsterdam, Netherlands
DestinationGran Canaria Airport
Gran Canaria, Canary Islands
Occupants248
Passengers234
Crew14
Fatalities248
Injuries0
Survivors0
Second aircraft

N736PA, the Pan Am Boeing 747-121
involved in the accident
TypeBoeing 747-121
NameClipper Victor
OperatorPan American World Airways
IATA flight No.PA1736
ICAO flight No.PAA1736
Call signCLIPPER 1736
RegistrationN736PA
Flight originLos Angeles International Airport
Los Angeles, United States
StopoverJohn F. Kennedy International Airport, New York City, U.S.
DestinationGran Canaria Airport
Gran Canaria, Canary Islands
Occupants396
Passengers380
Crew16
Fatalities335
Injuries61
Survivors61

A bomb set off by the Canary Islands Independence Movement at Gran Canaria Airport had caused many flights to be diverted to Los Rodeos, including the two aircraft involved in the accident. The airport quickly became congested with parked airplanes blocking the only taxiway and forcing departing aircraft to taxi on the runway instead. Patches of thick fog were drifting across the airfield, so visibility was greatly reduced for pilots and the control tower.[2][3]

The subsequent investigation by Spanish authorities concluded that the primary cause of the accident was the KLM captain's decision to take off in the mistaken belief that a takeoff clearance from air traffic control (ATC) had been issued.[4] Dutch investigators placed a greater emphasis on a mutual misunderstanding in radio communications between the KLM crew and ATC,[5] but ultimately KLM admitted that their crew was responsible for the accident and the airline agreed to financially compensate the relatives of all of the victims.[6]

The disaster had a lasting influence on the industry, highlighting in particular the vital importance of using standardized phraseology in radio communications. Cockpit procedures were also reviewed, contributing to the establishment of crew resource management as a fundamental part of airline pilots' training.[7]


Flight history


Tenerife was an unscheduled stop for both flights. Their destination was Gran Canaria Airport (also known as Las Palmas Airport or Gando Airport), serving Las Palmas on the nearby island of Gran Canaria. Both islands are part of the Canary Islands, an autonomous community of Spain located in the Atlantic Ocean off the southwest coast of Morocco.


KLM Flight 4805


KLM captain Jacob Veldhuyzen van Zanten featured in a 1977 advertisement for the airline.
KLM captain Jacob Veldhuyzen van Zanten featured in a 1977 advertisement for the airline.

KLM Flight 4805 was a charter flight for Holland International Travel Group and had arrived from Amsterdam Airport Schiphol, Netherlands.[8] Its cockpit crew consisted of Captain Jacob Veldhuyzen van Zanten (age 50),[9] First Officer Klaas Meurs (42), and Flight Engineer Willem Schreuder (48). At the time of the accident, Veldhuyzen van Zanten was KLM's chief flight instructor, with 11,700 flight hours, of which 1,545 hours were on the 747. Meurs had 9,200 flight hours, of which 95 hours were on the 747. Schreuder had 17,031 flight hours, of which 543 hours were on the 747.

The aircraft was a Boeing 747-206B, registration PH-BUF, named Rijn (Rhine). The KLM jet was carrying 14 crew members and 235 passengers, including 52 children. Most of the KLM passengers were Dutch; also on board were four Germans, two Austrians and two Americans. After the aircraft landed at Tenerife, the passengers were transported to the airport terminal. One of the inbound passengers, Robina van Lanschot, who lived on the island with her boyfriend, chose not to re-board the 747, leaving 234 passengers on board.[10][11]


Pan Am Flight 1736


Pan Am Flight 1736 had originated at Los Angeles International Airport, with an intermediate stop at New York's John F. Kennedy International Airport (JFK). The aircraft was a Boeing 747-121, registration N736PA, named Clipper Victor. It was the first 747 to be delivered to an airline. Of the 380 passengers (mostly of retirement age, but including two children), 14 had boarded in New York, where the crew was also changed. The new crew consisted of Captain Victor Grubbs (age 56), First Officer Robert Bragg (39), Flight Engineer George Warns (46) and 13 flight attendants. At the time of the accident, Grubbs had 21,043 hours of flight time, of which 564 hours were on the 747. Bragg had 10,800 flight hours, of which 2,796 hours were on the 747. Warns had 15,210 flight hours, of which 559 hours were on the 747.

This particular aircraft had operated the inaugural 747 commercial flight on 22 January 1970.[8] On 2 August 1970, in its first year of service, it also became the first 747 to be hijacked: en route between JFK and Luis Muñoz Marín International Airport in San Juan, Puerto Rico, it was diverted to José Martí International Airport in Havana, Cuba.[12]


Incident



Diversion of aircraft to Los Rodeos


Rijn (foreground) and Clipper Victor (center) at Los Rodeos on the day of the accident.
Rijn (foreground) and Clipper Victor (center) at Los Rodeos on the day of the accident.

Both flights had been routine until they approached the islands. At 13:15, a bomb planted by the separatist Canary Islands Independence Movement exploded in the terminal of Gran Canaria Airport, injuring eight people.[13] There had been a phone call warning of the bomb, and another call received soon afterwards made claims of a second bomb at the airport. The civil aviation authorities had therefore closed the airport temporarily after the explosion, and all incoming flights bound for Gran Canaria had been diverted to Los Rodeos, including the two aircraft involved in the disaster.[4] The Pan Am crew indicated that they would prefer to circle in a holding pattern until landing clearance was given (they had enough fuel to safely stay in the air for two more hours), but they were ordered to divert to Tenerife.[14]

Los Rodeos was a regional airport that could not easily accommodate all of the traffic diverted from Gran Canaria, which included five large airliners.[15] The airport had only one runway and one major taxiway running parallel to it, with four short taxiways connecting the two. While waiting for Gran Canaria airport to reopen, the diverted airplanes took up so much space that they had to park on the long taxiway, making it unavailable for the purpose of taxiing. Instead, departing aircraft needed to taxi along the runway to position themselves for takeoff, a procedure known as a backtaxi or backtrack.[4]

The authorities reopened Gran Canaria airport once the bomb threat had been contained. The Pan Am plane was ready to depart from Tenerife, but access to the runway was obstructed by the KLM plane and a refueling vehicle; the KLM captain had decided to fully refuel at Los Rodeos instead of Las Palmas, apparently to save time. The Pan Am aircraft was unable to maneuver around the refueling KLM in order to reach the runway for takeoff, due to a lack of safe clearance between the two planes, which was just 3.7 meters (12 ft).[10] The refueling took about 35 minutes, after which the passengers were brought back to the aircraft. The search for a missing Dutch family of four, who had not returned to the waiting KLM plane, delayed the flight even further. Robina van Lanschot,[16] a tour guide, had chosen not to reboard for the flight to Las Palmas, because she lived on Tenerife and thought it impractical to fly to Gran Canaria only to return to Tenerife the next day. She was therefore not on the KLM plane when the accident happened, and would be the only survivor of those who flew from Amsterdam to Tenerife on Flight 4805.


Taxiing and takeoff preparations


The tower instructed the KLM plane to taxi down the entire length of the runway and then make a 180° turn to get into takeoff position.[17] While the KLM was backtaxiing on the runway, the controller asked the flight crew to report when it was ready to copy the ATC clearance. Because the flight crew was performing the checklist, copying the clearance was postponed until the aircraft was in takeoff position.[18]

Simplified map of runway, taxiways, and aircraft. The red star indicates the location of impact. Not to scale.
Simplified map of runway, taxiways, and aircraft. The red star indicates the location of impact. Not to scale.

Shortly afterward, the Pan Am was instructed to follow the KLM down the same runway, exit it by taking the third exit on their left and then use the parallel taxiway. Initially, the crew was unclear as to whether the controller had told them to take the first or third exit. The crew asked for clarification and the controller responded emphatically by replying: "The third one, sir; one, two, three; third, third one." The crew began the taxi and proceeded to identify the unmarked taxiways using an airport diagram as they reached them.[19]

The crew successfully identified the first two taxiways (C-1 and C-2), but their discussion in the cockpit indicated that they had not sighted the third taxiway (C-3), which they had been instructed to use.[20] There were no markings or signs to identify the runway exits and they were in conditions of poor visibility. The Pan Am crew appeared to remain unsure of their position on the runway until the collision, which occurred near the intersection with the fourth taxiway (C-4).[21]

The angle of the third taxiway would have required the plane to perform a 148° turn, which would lead back toward the still-crowded main apron. At the end of C-3, the Pan Am would have to make another 148° turn, in order to continue taxiing towards the start of the runway, similar to a mirrored letter "Z". Taxiway C-4 would have required two 35° turns. A study carried out by the Air Line Pilots Association (ALPA) after the accident concluded that making the second 148° turn at the end of taxiway C-3 would have been "a practical impossibility".[22] The official report from the Spanish authorities explained that the controller instructed the Pan Am aircraft to use the third taxiway because this was the earliest exit that they could take to reach the unobstructed section of the parallel taxiway.[23]


Weather conditions at Los Rodeos


Los Rodeos airport is at 633 meters (2,077 ft) above sea level, which gives rise to weather conditions that differ from those at many other airports. Clouds at 600 m (2,000 ft) above ground level at the nearby coast are at ground level at Los Rodeos. Drifting clouds of different densities cause wildly varying visibilities, from unhindered at one moment to below the legal minimum the next. The collision took place in a high-density cloud.[24]

The Pan Am crew found themselves in poor and rapidly deteriorating visibility almost as soon as they entered the runway. According to the ALPA report, as the Pan Am aircraft taxied to the runway, the visibility was about 500 m (1,600 ft). Shortly after they turned onto the runway it decreased to less than 100 m (330 ft).[25]

Meanwhile, the KLM plane was still in good visibility, but with clouds blowing down the runway towards them. The aircraft completed its 180-degree turn in relatively clear weather and lined up on Runway 30. The next cloud was 900 m (3,000 ft) down the runway and moving towards the aircraft at about 12 knots (14 mph; 22 km/h).[26]


Communication misunderstandings


Immediately after lining up, the KLM captain advanced the throttles and the aircraft started to move forward.[35] First officer Meurs advised him that ATC clearance had not yet been given, and captain Veldhuyzen van Zanten responded: "No, I know that. Go ahead, ask." Meurs then radioed the tower that they were "ready for takeoff" and "waiting for our ATC clearance". The KLM crew then received instructions that specified the route that the aircraft was to follow after takeoff. The instructions used the word "takeoff," but did not include an explicit statement that they were cleared for takeoff.

Meurs read the flight clearance back to the controller, completing the readback with the statement: "We are now at takeoff."[4] Captain Veldhuyzen van Zanten interrupted the co-pilot's readback with the comment, "We're going."[4]

The controller, who could not see the runway due to the fog, initially responded with "OK" (terminology that is nonstandard), which reinforced the KLM captain's misinterpretation that they had takeoff clearance. The controller's response of "OK" to the co-pilot's nonstandard statement that they were "now at takeoff" was likely due to his misinterpretation that they were in takeoff position and ready to begin the roll when takeoff clearance was received, but not in the process of taking off. The controller then immediately added "stand by for takeoff, I will call you",[4] indicating that he had not intended the instruction to be interpreted as a takeoff clearance.[36]

A simultaneous radio call from the Pan Am crew caused mutual interference on the radio frequency, which was audible in the KLM cockpit as a three-second-long shrill sound (or heterodyne). This caused the KLM crew to miss the crucial latter portion of the tower's response. The Pan Am crew's transmission was "We're still taxiing down the runway, the Clipper 1736!" This message was also blocked by the interference and inaudible to the KLM crew. Either message, if heard in the KLM cockpit, would have alerted the crew to the situation and given them time to abort the takeoff attempt.[37]

Due to the fog, neither crew was able to see the other plane on the runway ahead of them. In addition, neither of the aircraft could be seen from the control tower, and the airport was not equipped with ground radar.[4]

After the KLM plane had started its takeoff roll, the tower instructed the Pan Am crew to "report when runway clear." The Pan Am crew replied: "OK, will report when we're clear." On hearing this, the KLM flight engineer expressed his concern about the Pan Am not being clear of the runway by asking the pilots in his own cockpit, "Is he not clear that Pan American?" Veldhuyzen van Zanten emphatically replied "Oh, yes" and continued with the takeoff.[34]


Collision


Engine wreckage
Engine wreckage

According to the cockpit voice recorder (CVR), the Pan Am captain said, "There he is!" when he spotted the KLM's landing lights through the fog just as his plane approached exit C-4. When it became clear that the KLM aircraft was approaching at takeoff speed, Captain Grubbs exclaimed, "Goddamn, that son-of-a-bitch is coming!", while first officer Robert Bragg yelled, "Get off! Get off! Get off!" Captain Grubbs applied full power to the throttles and made a sharp left turn towards the grass in an attempt to avoid the impending collision.[4] By the time the KLM pilots saw the Pan Am aircraft, they were already moving too fast to stop. In desperation, the pilots prematurely rotated the aircraft and attempted to clear the Pan Am by lifting off, causing a 22 m (72 ft) tailstrike.[4]

The KLM 747 was within 100 m (330 ft) of the Pan Am and moving at approximately 140 knots (260 km/h; 160 mph) when it left the ground. Its nose landing gear cleared the Pan Am, but its left-side engines, lower fuselage, and main landing gear struck the upper right side of the Pan Am's fuselage,[10] ripping apart the center of the Pan Am jet almost directly above the wing. The right-side engines crashed through the Pan Am's upper deck immediately behind the cockpit.

The KLM plane remained briefly airborne, but the impact had sheared off the outer left engine, caused significant amounts of shredded materials to be ingested by the inner left engine, and damaged the wings. The plane immediately went into a stall, rolled sharply, and hit the ground approximately 150 m (500 ft) past the collision, sliding down the runway for a further 300 m (1,000 ft). The full load of fuel, which had caused the earlier delay, ignited immediately into a fireball that could not be subdued for several hours. One of the 61 survivors of the Pan Am flight said that sitting in the nose of the plane probably saved his life: "We all settled back, and the next thing an explosion took place and the whole port side, left side of the plane, was just torn wide open."[38]

Burned out wreckage
Burned out wreckage

Captain Veldhuyzen van Zanten was KLM's chief of flight training and one of their most senior pilots. About two months before the accident, he had conducted the Boeing 747 qualification check on the co-pilot of Flight 4805.[11] His photograph was used for publicity materials such as magazine advertisements, including the inflight magazine on board PH-BUF.[10][39] KLM had suggested initially that Veldhuyzen van Zanten should help with the investigation, unaware that he had been killed in the accident.[40]


Victims

Both airplanes were destroyed in the collision. All 248 passengers and crew aboard the KLM plane died, as did 335 passengers and crew aboard the Pan Am plane,[41] primarily due to the fire and explosions resulting from the fuel spilled and ignited in the impact. The other 61 passengers and crew aboard the Pan Am aircraft survived, including the captain, first officer, and flight engineer. Most of the survivors on the Pan Am walked out onto the intact left wing, the side away from the collision, through holes in the fuselage structure.

The Pan Am's engines were still running for a few minutes after the accident despite first officer Bragg's intention to turn them off. The top part of the cockpit, where the engine switches were located, had been destroyed in the collision, and all control lines were severed, leaving no method for the flight crew to control the aircraft's systems. Survivors waited for rescue, but it did not come promptly, as the firefighters were initially unaware that there were two aircraft involved and were concentrating on the KLM wreck hundreds of meters away in the thick fog and smoke. Eventually, most of the survivors on the wing dropped to the ground below.[10]


Notable fatalities


Aftermath


Wreckage of the vertical stabilizer
Wreckage of the vertical stabilizer

The following day, the Canary Islands Independence Movement, responsible for the bombing at Gran Canaria that started the chain of events that led to the disaster, denied responsibility for the accident.[44]

Los Rodeos Airport, the only operating airport on Tenerife in 1977, was closed to all fixed-wing traffic for two days. The first crash investigators to arrive at Tenerife the day after the crash travelled there by way of a three-hour boat ride from Las Palmas.[45] The first aircraft that was able to land was a United States Air Force C-130 transport, which landed on the airport's main taxiway at 12:50 on 29 March. The C-130 transport was arranged by Lt. Col Dr. James K. Slaton, who arrived before the crash investigators and started triaging surviving passengers. Slaton was dispatched from Torrejon Air Base just outside of Madrid, Spain. Slaton, who was a flight surgeon attached to the 613th Tactical Fighter Squadron, worked with the local medical staff and remained on scene until the last survivor was airlifted to awaiting medical facilities. The C-130 transported all surviving and injured passengers from Tenerife to Las Palmas; many of the injured were taken from there to Air Force bases in the United States for further treatment.[46][47]

Spanish Army soldiers were tasked with clearing crash wreckage from the runways and taxiways.[48] By 30 March, a small plane shuttle service was approved, but large jets still could not land.[48] Los Rodeos was fully reopened on 3 April, after wreckage had been fully removed and engineers had repaired the airport's runway.[49]


Investigation


Wreckage of the Pan Am Boeing 747
Wreckage of the Pan Am Boeing 747

The accident was investigated by Spain's Comisión de Investigación de Accidentes e Incidentes de Aviación Civil (CIAIAC).[4] About 70 personnel were involved in the investigation, including representatives from the United States, the Netherlands[50] and the two airline companies.[51] Facts showed that there had been misinterpretations and false assumptions before the accident. Analysis of the CVR transcript showed that the KLM pilot thought that he had been cleared for takeoff, while the Tenerife control tower believed that the KLM 747 was stationary at the end of the runway, awaiting takeoff clearance. It appears that KLM's co-pilot was not as certain about take-off clearance as the captain.


Probable cause


The investigation concluded that the fundamental cause of the accident was that Captain Veldhuyzen van Zanten attempted to take off without clearance. The investigators suggested the reason for this was a desire to leave as soon as possible in order to comply with KLM's duty-time regulations (which went in place earlier that year) and before the weather deteriorated further.

Other major factors contributing to the accident were:

The following factors were considered contributing but not critical:


Dutch response


The Dutch authorities were reluctant to accept the Spanish report blaming the KLM captain for the accident.[53] The Netherlands Department of Civil Aviation published a response that, while accepting that the KLM captain had taken off "prematurely", argued that he alone should not be blamed for the "mutual misunderstanding" that occurred between the controller and the KLM crew, and that limitations of using radio as a means of communication should have been given greater consideration.

In particular, the Dutch response pointed out that:

Although the Dutch authorities were initially reluctant to blame captain Veldhuyzen van Zanten and his crew,[5][55] the airline ultimately accepted responsibility for the accident. KLM paid the victims' families compensation ranging between $58,000 and $600,000 (or $259,000 to $2.7 million today, adjusted for inflation).[6] The sum of settlements for property and damages was $110 million (or $492 million today),[56] an average of $189,000 (or $845,000 today) per victim, due to limitations imposed by European Compensation Conventions in effect at the time.


Speculations


This was one of the first accident investigations to include a study into the contribution of "human factors".[57] These included:

The extra fuel taken on by the KLM added several factors:


Legacy


As a consequence of the accident, sweeping changes were made to international airline regulations and to aircraft. Aviation authorities around the world introduced requirements for standard phrases and a greater emphasis on English as a common working language.[14]

Air traffic instruction must not be acknowledged solely with a colloquial phrase such as "OK" or even "Roger" (which simply means the last transmission was received),[66] but with a readback of the key parts of the instruction, to show mutual understanding. The word "takeoff" is now spoken only when the actual takeoff clearance is given, or when canceling that same clearance (i.e. "cleared for takeoff" or "cancel takeoff clearance"). Until that point, aircrew and controllers should use the word "departure" in its place (e.g. "ready for departure"). Additionally, an ATC clearance given to an aircraft already lined-up on the runway must be prefixed with the instruction "hold position".[67]

Cockpit procedures were also changed after the accident. Hierarchical relations among crew members were played down, and greater emphasis was placed on team decision-making by mutual agreement. Less experienced flight crew members were encouraged to challenge their captains when they believed something to be incorrect, and captains were instructed to listen to their crew and evaluate all decisions in light of crew concerns. This course of action was later expanded into what is known today as crew resource management (CRM), which states that all pilots, no matter how experienced they are, are allowed to contradict each other. This was a problem in the crash when the Flight Engineer asked if they were not clear, but Jacob Veldhuyzen van Zanten (the captain of the KLM, with over 11,000 hours flown) said that they were obviously clear and the Flight Engineer decided that it was best not to contradict the captain. CRM training has been mandatory for all airline pilots since 2006.[68][69]

In 1978, a second airport was opened on the island of Tenerife, the new Tenerife South Airport (TFS), which now serves the majority of international tourist flights. Los Rodeos, renamed Tenerife North Airport (TFN), was then used only for domestic and inter-island flights until 2002, when a new terminal was opened and Tenerife North began to carry international traffic again.

The Spanish government installed a ground radar system at Tenerife North Airport following the accident.[14][70]


Memorials


Tenerife disaster memorials
Memorial on Tenerife
Westgaarde Cemetery
Westminster Memorial Park

A Dutch national memorial and final resting place for the victims of the KLM plane is located in Amsterdam, at Westgaarde cemetery. There is also a memorial at the Westminster Memorial Park and Mortuary in Westminster, California, US.

In 1977, a cross in Rancho Bernardo was dedicated to nineteen area residents who died in the disaster.[71][72]

In 2007, the 30th anniversary marked the first time that Dutch and American next-of-kin and aid helpers from Tenerife joined an international commemoration service, held at the Auditorio de Tenerife in Santa Cruz. The International Tenerife Memorial March 27, 1977, was inaugurated at the Mesa Mota on 27 March 2007. The monument was designed by Dutch sculptor Rudi van de Wint (1942-2006).[73][74]


Documentaries


The disaster has been featured in many TV shows and documentaries. These include the Survival in the Sky episode "Blaming the Pilot", the Seconds From Disaster episode "Collision on the Runway", PBS's NOVA episode "The Deadliest Plane Crash" in 2006, the PBS special Surviving Disaster: How the Brain Works Under Extreme Duress (based on Amanda Ripley's book The Unthinkable: Who Survives When Disaster Strikes - and Why) in 2011, Destroyed in Seconds and an episode of the Canadian TV series Mayday (known by different names in different countries), namely the season 16 standard length episode "Disaster at Tenerife" with the earlier more in-depth 90-minute "Crash of the Century" being a spin-off. Footage was included in the 1979 film Days of Fury, narrated by Vincent Price.


See also



References


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  44. "Canary Island Separatist Says Group Planted Bomb But Did Not Cause Crash". The New York Times. Agence France-Presse. March 28, 1977. Retrieved December 20, 2018.
  45. "Experts converge on Canaries to probe plane crash". Chicago Tribune. March 29, 1977. p. 1. Retrieved June 29, 2020.
  46. "Air crash victims flown home". Eugene Register-Guard. (Oregon). UPI. March 30, 1977. p. 1A.
  47. "Desert Sun 29 March 1977 — California Digital Newspaper Collection". cdnc.ucr.edu. Retrieved June 28, 2016.
  48. "30 Mar 1977, Page 4 - The Naples Daily News". Newspapers.com. Retrieved June 19, 2016.
  49. "Crash airport open again". New Nation (Singapore). NLB. April 4, 1977. p. 5. Retrieved June 28, 2016.
  50. "The Deadliest Plane Crash - The Final Eight Minutes". Nova. Retrieved October 17, 2019.
  51. "B742 / B741, Tenerife Canary Islands Spain, 1977 - SKYbrary Aviation Safety". www.skybrary.aero. April 5, 2021. Retrieved June 3, 2021.
  52. "Official report" (PDF). (5.98 MB), pp. 61–62
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  54. "Final report and comments of the Netherlands Aviation Safety Board" (PDF). Project-Tenerife.com. pp. 60–61 (PDF pp. 40–41). Archived (PDF) from the original on September 27, 2007.
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  56. The Washington Post, March 25, 1980
  57. "ALPA report on the crash" (PDF). Archived from the original (PDF) on July 15, 2011. (2.70a MB), p. 2 (PDF p. 6 of 97). "The study group notes with approval that the official report of the spanish government has, itself, included a section on human factors involved in this accident. We feel that this is an excellent beginning toward a better understanding of the causal factors of aviation accidents, an idea whose time has finally come."
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  59. "Official report" (PDF). (5.98 MB), section 5.2, p. 38 (PDF p. 41 of 63): "... these circumstances could have induced the co-pilot not to ask any questions, assuming that his captain was always right"
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  61. "ALPA report on the crash" (PDF). Archived from the original (PDF) on July 15, 2011. (2.70 MB), p. 22 (PDF p. 26 of 97). "Both pilots were contending with heavy demands on their attention as the visibility rapidly worsened. The flight engineer, to the contrary, had completed the heaviest part of his workload and was now reverting to an instrument monitoring mode."
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  64. The Deadliest Plane Crash - transcript, NOVA, The 55 tons of fuel the Dutch plane had taken on creates a massive fireball that seals the fate of everyone onboard
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  67. CAP 413 Radio Telephony Manual (Edition 15), chapter 4, page 6, paragraph 1.7.10
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External media
Images
PH-BUF (KLM 4805) – Airliners.net
N736PA (Pan Am 1736) – Airliners.net
Video
Survivor remembers deadliest aviation disaster in Tenerife – CBS This Morning – March 27, 2017

На других языках


[de] Flugzeugkatastrophe von Teneriffa

Bei der Flugzeugkatastrophe von Teneriffa kollidierte auf dem Flughafen Los Rodeos am Sonntag, dem 27. März 1977, um 17:06 Uhr Ortszeit eine Boeing 747-206B der KLM Royal Dutch Airlines mit einer Boeing 747-121 der Pan American World Airways (Pan Am). An Bord der Flugzeuge befanden sich insgesamt 644 Personen. Nur 70 Insassen der Boeing 747 der Pan Am überlebten den Zusammenstoß; neun von ihnen erlagen später ihren Verletzungen. Mit 583 Toten ist der Unfall einer der schwersten der zivilen Luftfahrt und bis heute der schwerste ohne terroristische Beteiligung.
- [en] Tenerife airport disaster

[it] Disastro aereo di Tenerife

Il disastro aereo di Tenerife è stato un incidente aereo avvenuto il 27 marzo 1977 alle ore 17:06:56 CET, a seguito della collisione tra due aerei passeggeri Boeing 747 sulla pista dell'aeroporto di Los Rodeos dell'isola spagnola di Tenerife, nell'arcipelago delle Canarie.

[ru] Столкновение в аэропорту Лос-Родеос

Столкновение в аэропорту Лос-Родеос — крупнейшая авиационная катастрофа, произошедшая в воскресенье 27 марта 1977 года. На взлётной полосе аэропорта Лос-Родеос в Санта-Крус-де-Тенерифе (Тенерифе, Канарские острова) столкнулись авиалайнеры Boeing 747-206B авиакомпании KLM (рейс KL4805 Амстердам—Лас-Пальмас-де-Гран-Канария) и Boeing 747-121 авиакомпании Pan American (рейс PA1736 Лос-Анджелес—Нью-Йорк—Лас-Пальмас-де-Гран-Канария). В катастрофе погибли 583 человека — все 248 человек на борту рейса KL4805 (234 пассажира и 14 членов экипажа) и 335 человек на борту рейса PA1736 из 396 (380 пассажиров и 16 членов экипажа).



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