1977-03-27 · Los Rodeos Airport, Tenerife
Tenerife Airport Disaster
Two Boeing 747s, KLM Flight 4805 and Pan Am Flight 1736, collided on the runway at Tenerife in dense fog. The accident killed 583 people and remains the deadliest aviation accident.
Risk rails
Values versus the incident class median
These rails are editorial risk dimensions, not final accident-cause percentages. Pending rows stay visibly blank.
Weather
81/100
Human factors
94/100
Mechanical
3/100
Terrain
8/100
Ops control
91/100
Safety lesson
This page should make the operational chain legible: diversion pressure, congestion, fog, radio ambiguity, runway occupancy, and crew authority gradients.
Insurance signal
Useful for airport liability, runway incursion risk, mass-fatality accumulation, and historical severity benchmarking.
Median context
Historical severity
Deadliest aviation accident
The benchmark event for runway collision safety lessons.
Training value
Extreme
Still used to explain CRM, phraseology, fog operations, and runway occupancy discipline.
Source status
Official report available
A final accident report is available through FAA-hosted archival material.
Sources and agent surfaces