Tenerife Disaster
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Tenerife Disaster

Tenerife airport disaster
KLM Flight 4805 · Pan Am Flight 1736
Het verongelukte KLM-toestel De Rijn, Bestanddeelnr 929-1005 - cropped.jpg
Wreckage on the runway
Accident
DateMarch 27, 1977
SummaryRunway collision
Site
Los Rodeos Airport
(now Tenerife North Airport)
Tenerife, Canary Islands
Coordinates: 28°28?54?N 16°20?18?W / 28.48165°N 16.3384°W / 28.48165; -16.3384
Total fatalities583
Total injuries61
Total survivors61
First aircraft
KLM Boeing 747-200 PH-BUF (7491686916).jpg
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 originSchiphol Airport
Amsterdam, Netherlands
DestinationGran Canaria Airport
Gran Canaria, Canary Islands
Passengers234
Crew14
Fatalities248
Survivors0
Second aircraft
Pan Am Boeing 747-121 N736PA at Sydney.jpg
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 origin
Los Angeles, United States
StopoverJohn F. Kennedy International Airport, New York City, U.S.
DestinationGran Canaria Airport
Gran Canaria, Canary Islands
Passengers380
Crew16
Fatalities335
(326 passengers, 9 crew)
Injuries61
Survivors61

On March 27, 1977, two Boeing 747 passenger jets, operating KLM Flight 4805 and Pan Am Flight 1736, collided on the runway at Los Rodeos Airport (now Tenerife North Airport) on the Spanish island of Tenerife.[1][2] Resulting in 583 fatalities, this accident was the deadliest in aviation history.

A terrorist incident 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 that the aircraft and control tower were unable to see one another.[1][2]

The collision occurred when the KLM airliner initiated its takeoff run while the Pan Am airliner, shrouded in fog, was still on the runway and about to turn off onto the taxiway. 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.[1][2]

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.[3] Dutch investigators placed a greater emphasis on mutual misunderstanding in radio communications between the KLM crew and ATC,[4] 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.[5]

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.[6]

Flight history

Tenerife was an unscheduled stop for both flights. Their destination was Gran Canaria International 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 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.[7] Its cockpit crew consisted of captain Jacob Veldhuyzen van Zanten, age 50,[8]first officer Klaas Meurs, age 42, and flight engineer Willem Schreuder, age 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 15,210 flight hours, of which 540 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 4 Germans, 2 Austrians and 2 Americans. After the aircraft landed at Tenerife, the passengers were transported to the airport terminal. One of the inbound passengers, who lived on the island with her boyfriend, chose not to re-board the 747, leaving 234 passengers on board.[9][10]

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. 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, age 39, flight engineer George Warns, age 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 January 22, 1970.[7] On August 2, 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.[11]

Disaster

Diversion of aircraft to Los Rodeos

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 International Airport, injuring eight people.[12] 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 Boeing 747 aircraft involved in the disaster.[3] 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 2 more hours), but they were ordered to divert to Tenerife.[13]

Los Rodeos was a regional airport that could not easily accommodate all of the traffic diverted from Gran Canaria, which included five large airliners.[14] 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 were having 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.[3]

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 being 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).[9] 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. 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 she 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 to taxi down the entire length of the runway and then make a 180-degree turn to get into takeoff position.[15] 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 this clearance was postponed until the aircraft was in takeoff position on Runway 30.[16]

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.[17]

The crew successfully identified the first two taxiways (C-1 and C-2), but their discussion in the cockpit never indicated that they had sighted the third taxiway (C-3), which they had been instructed to use.[18] 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).[19]

The angle of the third taxiway would have required the plane to perform a 148-degree 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-degree 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-degree-turns. A study carried out by the Air Line Pilots Association (ALPA) after the accident concluded that making the second 148-degree turn at the end of taxiway C-3 would have been "a practical impossibility."[20] The official report from the Spanish authorities explains 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.[21]

Weather conditions at Los Rodeos

Los Rodeos airport is at 633 meters (2,077 ft) above sea level, which gives rise to cloud behavior that differs from that 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 minimums the next. The collision took place in a high-density cloud.[22]

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).[23]

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).[24]

Communication misunderstandings

Immediately after lining up, the KLM captain advanced the throttles and the aircraft started to move forward.[31] 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."[3] Captain Veldhuyzen van Zanten interrupted the co-pilot's read-back with the comment, "We're going."[3]

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",[3] indicating that he had not intended the clearance to be interpreted as a takeoff clearance.[32]

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 3-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.[33]

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.[3]

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

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.[3] By the time the KLM pilots saw the Pan Am aircraft, they were already traveling too fast to stop. In desperation, the pilots prematurely rotated the aircraft and attempted to clear the Pan Am by lifting off, causing a severe tailstrike for 22 m (72 ft).

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,[9] 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, John Coombs of Haleiwa, Hawaii, 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."[35]

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,[36] 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.[9]

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.[10] His photograph was used for publicity materials such as magazine advertisements, including the inflight magazine on board PH-BUF.[9][37] KLM had suggested initially that Veldhuyzen van Zanten should help with the investigation, not realising that he was in fact the KLM captain who had perished in the accident.[38]

Aftermath

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.[39]

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.[40] 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 March 29. 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 air lifted 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.[41][42]

Spanish Army soldiers were tasked with clearing crash wreckage from the runways and taxiways.[43] By March 30, a small plane shuttle service was approved, but large jets still could not land.[43] Los Rodeos was fully reopened on April 3, after wreckage had been fully removed and engineers had repaired the airport's runway.[44]

Investigation

The accident was investigated by Spain's Comisión de Investigación de Accidentes e Incidentes de Aviación Civil (CIAIAC).[3] About 70 personnel were involved in the investigation, including representatives from the Netherlands, the United States, and the two airline companies.[45] 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 sudden fog greatly limited visibility. The control tower and the crews of both planes were unable to see one another.
  • Interference from simultaneous radio transmissions, with the result that it was difficult to hear the message.

The following factors were considered contributing but not critical:

  • Use of ambiguous non-standard phrases by the KLM co-pilot ("We're at take off") and the Tenerife control tower ("OK").
  • The Pan Am aircraft had not left the runway at the third intersection.
  • The airport was forced to accommodate a great number of large aircraft due to rerouting from the terrorist incident, resulting in disruption of the normal use of taxiways.[46]

Dutch response

The Dutch authorities were reluctant to accept the Spanish report blaming the KLM captain for the accident.[47] 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:

  • The crowded airport had placed additional pressure on all parties, including the KLM cockpit crew, the Pan Am cockpit crew, and the controller;
  • Sounds on the CVR suggested that during the accident the Spanish control tower crew had been listening to a soccer match on the radio and may have been distracted;[48]
  • The transmission from the tower in which the controller passed KLM their ATC clearance was ambiguous and could have been interpreted as also giving take-off clearance. In support of this part of their response, the Dutch investigators pointed out that Pan Am's messages "No! Eh?" and "We are still taxiing down the runway, the Clipper 1736!" indicated that captain Grubbs and first officer Bragg had recognized the ambiguity (this message was not audible to the control tower or KLM crew due to simultaneous cross-communication);
  • The Pan Am had taxied beyond the third exit. Had the plane turned at the third exit as instructed, the collision would not have occurred.[4][49]

Although the Dutch authorities were initially reluctant to blame captain Veldhuyzen van Zanten and his crew,[4][49] the airline ultimately accepted responsibility for the accident. KLM paid the victims or their families compensation ranging between $58,000 and $600,000 (or $240,000 to $2.5 million today, adjusted for inflation).[5] The sum of settlements for property and damages was $110 million (or $455 million today),[50] an average of $189,000 (or $781,000 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".[51] These included:

  • Captain Veldhuyzen van Zanten, a KLM training captain and instructor for over ten years, had not flown on regular routes during the twelve weeks prior to the accident.[52]
  • The apparent hesitation of the flight engineer and the first officer to challenge Veldhuyzen van Zanten further. The official investigation suggested that this might have been due not only to the captain's seniority in rank, but also to his being one of the most respected pilots working for the airline.[9][53] This view is questioned by Jan Bartelski, a former KLM captain and the president of the International Federation of Air Line Pilots' Associations (IFALPA), who knew both officers and believes this explanation to be inconsistent with his knowledge of their personalities. The first officer had intervened when Veldhuyzen van Zanten first opened the throttles, but had then failed to do so on the second occasion. Although the flight engineer had indeed asked the captain whether or not the Pan Am was clear of the runway, he seemed reassured by the captain's answer. The co-pilots had clearly challenged the captain's decisions, but were not insistent enough to convince him to abort the attempted takeoff.[54]
  • The flight engineer was the only member of the KLM's flight crew to react to the control tower's instruction to "report when runway clear"; this might have been due to him having completed his pre-flight checks, whereas his colleagues were experiencing an increased workload, just as the visibility worsened.[55]
  • The ALPA study group concluded that the KLM crew did not realize that the transmission "Papa Alpha one seven three six, report when runway clear" was directed at the Pan Am, because this was the first and only time the Pan Am was referred to by that name. Previously, the Pan Am had been called "Clipper one seven three six", using its proper callsign.[56]

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

  • Takeoff was delayed by an extra 35 minutes, allowing time for the fog to settle in;
  • Over forty tons of additional weight was added to the aircraft,[57] increasing the takeoff distance and making it more difficult to clear the Pan Am when taking off;
  • The increased severity of the fire caused by the crash led ultimately to the deaths of all those on board.[58][59]

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.[13]

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),[60] 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 cancelling that same clearance (i.e. "cleared for takeoff" or "cancel takeoff clearance"). Up 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".[61]

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), training which is now mandatory for all airline pilots.[62][63]

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.[13][64]

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.

In 1977, a cross in Rancho Bernardo was dedicated to nineteen area residents who died during the disaster.[65][66]

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 March 27, 2007. The monument was designed by Dutch sculptor Rudi van de Wint.[67]

Notable victims

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 episodes 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.

Similar accidents and incidents

  • Runway collision on January 29, 1971: A Trans Australia Airlines Boeing 727 taking off from Kingsford-Smith Airport, Sydney collided with a Canadian Pacific Airlines Douglas DC8-63 which had just landed. Both aircraft were substantially damaged; the Boeing 727 sustained damage to the underside of its fuselage, but made a successful emergency landing back at Kingsford-Smith Airport; the DC-8 lost most of its tailfin and rudder, and the starboard elevator was also damaged. There were no injuries among the nineteen crew and 240 passengers on board the two aircraft.[70]
  • Near collision on runway on October 11, 2016: China Eastern Airlines Flight 5643, an Airbus A320, was forced to rotate early whilst taking off from Shanghai Hongqiao International Airport due to China Eastern Airlines Flight 5106, an Airbus A330, crossing the runway ahead of it. The crew of the A330 had been cleared to cross by Air Traffic Control, shortly after the A320 had been cleared for takeoff. The crossing clearance was later revoked. There was no collision, the A320 clearing the A330 by 19 meters (62 ft). There were a total of 26 crew and 413 passengers aboard the two aircraft. The pilot of the A320 was rewarded by the Civil Aviation Administration of China for averting the accident.[71]

See also

References

  1. ^ a b c "580 killed in history's worst air disaster". Eugene Register-Guard. (Oregon). Associated Press. March 28, 1977. p. 1A.
  2. ^ a b c "Dutch pilot blamed for air disaster". Eugene Register-Guard. (Oregon). Associated Press. March 29, 1977. p. 1A.
  3. ^ a b c d e f g h i "ASN Accident Description". Aviation Safety Network. Retrieved 2011.
  4. ^ a b c "Dutch comments on the Spanish report" (PDF). Project-Tenerife.
  5. ^ a b "How KLM accepted their responsibility for the accident". Project-Tenerife.
  6. ^ Baron, Robert. "The Cockpit, the Cabin, and Social Psychology". Global Operators Flight Information Resource. Retrieved 2011.
  7. ^ a b Kilroy, Chris. "Special Report: Tenerife". AirDisaster.com. Archived from the original on October 18, 2007.
  8. ^ "Official report" (PDF). (5.98 MB), section 5.2, p. 38 (PDF p. 41 of 63)"
  9. ^ a b c d e f Job, Macarthur (January 1995). Air Disaster, Volume 1. Motorbooks International. pp. 164-180. ISBN 978-1875671113.
  10. ^ a b "The Deadliest Plane Crash". PBS. October 17, 2006. Retrieved 2014.
  11. ^ "A Day of "Firsts"". Pan Am Historical Foundation.
  12. ^ Markham, James M. (April 2, 1977). "Wreck of 747's Sets Back Cause Of Insurgents on Canary Islands" (from NYT archives). The New York Times.
  13. ^ a b c "The Tenerife Airport Disaster - the worst in aviation history". tenerife information centre. March 27, 1977. Retrieved 2017.
  14. ^ Ebert, John David (2012). The Age of Catastrophe: Disaster and Humanity in Modern Times. McFarland. p. 41. ISBN 978-0-7864-7142-3. Five large planes had been diverted to Las Rodeos, ...
  15. ^ "Official report" (PDF). (5.98 MB), p. 2 (PDF p. 5 of 63)
  16. ^ "Official report" (PDF). (5.98 MB), pp. 3-4 (PDF pp. 6-7 of 63)
  17. ^ "Official report" (PDF). (5.98 MB), p. 3 (PDF p. 6 of 63)
  18. ^ "Official report" (PDF). (5.98 MB), pp. 56-57 (PDF pp. 59-60 of 63)
  19. ^ "Official report, annex 6" (PDF).
  20. ^ "ALPA report on the crash" (PDF). Archived from the original (PDF) on July 15, 2011. (2.70 MB), p. 19 (PDF p. 23 of 97)
  21. ^ "Official report" (PDF). (5.98 MB), p. 46 (PDF p. 49 of 63)
  22. ^ "ALPA report on the crash" (PDF). Archived from the original (PDF) on July 15, 2011. (2.70 MB), p. 8 (PDF p. 12 of 97)
  23. ^ "ALPA report on the crash" (PDF). Archived from the original (PDF) on July 15, 2011. (2.70 MB), p. 11 (PDF p. 15 of 97)
  24. ^ "ALPA report on the crash" (PDF). Archived from the original (PDF) on July 15, 2011. (2.70 MB), p. 12 (PDF p. 16 of 97)
  25. ^ "The Tenerife crash - March 27th, 1977". www.1001crash.com. Retrieved 2016.
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  30. ^ Croucher, Phil (March 1, 2004). JAR Professional Pilot Studies by Phil Croucher. ISBN 9780968192825. Retrieved 2013.
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  33. ^ "Air travel's communications killer". Salon.com. March 28, 2002. Archived from the original on February 1, 2013.
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  42. ^ "Desert Sun 29 March 1977 -- California Digital Newspaper Collection". cdnc.ucr.edu. Retrieved 2016.
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  45. ^ Job, p.164
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  50. ^ The Washington Post, March 25, 1980
  51. ^ "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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  53. ^ "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"
  54. ^ Bartelski, Jan (2001). Disasters in the air: mysterious air disasters explained. Airlife. ISBN 978-1-84037-204-5.
  55. ^ "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."
  56. ^ "ALPA report on the crash" (PDF). project-Tenerife.com. Archived from the original (PDF) on July 15, 2011. (2.70 MB), p. 22 (PDF p. 26 of 97). "It is our opinion that the flight engineer, like the pilots, did not perceive the message from the controller to the Pan Am asking them to report when runway clear. (Because of the use of the address "Papa Alpha)."
  57. ^ This Spanish report says 55,500 liters of jet fuel. Based on a density of 0.8705 kg/l that weighs 45 metric tons, or 49 US tons Archived April 12, 2009, at the Wayback Machine
  58. ^ 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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  60. ^ CAP 413 Radio Telephony Manual (Edition 15), chapter 2 page 6
  61. ^ CAP 413 Radio Telephony Manual (Edition 15), chapter 4, page 6, paragraph 1.7.10
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External links

External images
PH-BUF (KLM 4805) - Airliners.net
N736PA (Pan Am 1736) - Airliners.net

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