Tenerife airport disaster — runway collision at Los Rodeos Airport, Tenerife, 1977-03-27
The deadliest accident in aviation history, killing 583 people, and fundamentally reshaping cockpit communication standards and crew resource management training worldwide.
Key Facts
- Total fatalities
- 583 people
- Total injured
- 61 people
- KLM Flight 4805 fatalities
- 248 all on board
- Pan Am Flight 1736 fatalities
- 335 of 396 people
- Time of collision
- 17:06 GMT
- Aircraft type
- Boeing 747 (both planes)
By the Numbers
Location
Cause → Event → Consequence
A bomb explosion at Gran Canaria Airport forced multiple aircraft to divert to Los Rodeos Airport, causing severe congestion. Parked planes blocked the sole taxiway, requiring departing aircraft to use the runway itself for taxiing. Dense patches of fog severely reduced visibility for both pilots and the control tower, creating conditions ripe for miscommunication.
On 27 March 1977, KLM Flight 4805 initiated its takeoff run without confirmed clearance, colliding with Pan Am Flight 1736, which was still on the runway. The impact and ensuing fire destroyed both Boeing 747s, killing all 248 aboard the KLM aircraft and 335 of 396 aboard the Pan Am aircraft, with 61 survivors found in the Pan Am plane's front section.
Spanish investigators attributed primary blame to the KLM captain; KLM ultimately accepted responsibility and compensated victims' families. The disaster prompted a global overhaul of aviation safety protocols, establishing standardized radio phraseology and crew resource management as core elements of pilot training, fundamentally changing how authority and communication are handled in cockpits.
Human Cost
Each dot represents approximately 10,000 deaths. Total estimated: 583 (other)