THE DEADLIEST AVIATION ACCIDENT

The Tenerife airport accident with 583 casualties is considered to be the deadliest runway accident in the aviation history. Unlike the majority of aviation accidents, the Tenerife airport accident is caused, probably, by all the reasons for an aviation accident to occur. These reasons are heretofore discussed.
* Terrorism – On March 27, 1977 dozens of commercial airplanes bound for Gran Canaria Airport were asked to temporarily land on Tenerife North Airport (Los Rodeos Airport) due to a bomb threat on the former airport.
* Inadequacy of facilities – The facilities of the Tenerife North Airport: runways are inadequate to accommodate the rerouted airplanes. Some of the airplanes had no choice but to land on taxiway.
* Inadequate equipment – The Tenerife North Airport was not equipped with ground radar during the accident, which could have been essential in monitoring the movements of airplanes even during the recurring events of thick fog or clouds covering the entire airport.
* Unnecessary activities – Unnecessary decision to refuel by one of the planes resulted to 35 minutes delay of takeoff. This delay resulted in the encounter of the sudden weather change.
* Bad Weather – Dense thick clouds filled the entire runway of the Tenerife North Airport not allowing visual view among airplane pilots and from the tower.
* Miscommunication – The communication the pilots from the tower were unclear, hence the wrong routes were taken – Pan Am exited through C4 instead of C3. Miscommunication was further made worse by the use of non-standard phrases (KLM co-pilot: We`re at takeoff Tower: OK).
* Technical malfunction – Key radio transmissions between pilots and tower cancelled each other out during the planned take off of the KLM 747.
* Unfamiliarity with existing rules – The KLM 747 Flight 4805 still took off despite the presence of thick clouds in the runway. Pan Am Flight 1736, which is more familiar with the rules in Tenerife, delayed its take off, parked in one end of the runway. The KLM 747 crashed with the parked Pan Am.
References
Aviation Safety Network. “Accident Description.” Aviation Safety Network. Spain, 2013. Web. 17 September 2013. < http://aviation-safety.net/database/record.php?id=19770327-0>.
Aerocrasher. “Most Deadly Aviation Disaster – Tenerife – Full Length – HQ.” YouTube, 2010. Web. 17 September 2013. .

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