Cubana de Aviación Flight 493, registration was a Douglas DC-4 en route from

Miami Miami is a East Coast of the United States, coastal city in the U.S. state of Florida and the county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida. It is the core of the Miami metropolitan area, which, with a populat ...

, Florida, to

Havana Havana (; ) is the capital and largest city of Cuba. The heart of La Habana Province, Havana is the country's main port and commercial center.US Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...

Beechcraft SNB-1 Kansan, BuNo 39939, was on an instrument training flight in the vicinity of Naval Air Station Key West, Florida, at the same time. The two aircraft collided in mid-air over

Key West Key West is an island in the Straits of Florida, at the southern end of the U.S. state of Florida. Together with all or parts of the separate islands of Dredgers Key, Fleming Key, Sunset Key, and the northern part of Stock Island, it con ...

, killing all 43 aboard both aircraft.

Flight history

Flight 493 departed Miami at 11:09 a.m. that day and was cleared to climb to 4,000 feet on a direct heading to Key West. Approximately ten minutes later, the SNB-1 took off from Key West NAS for simulated instrument training. Although the flight was not cleared to a specific altitude or heading, standard instrument training procedures were in place. At 11:49 a.m. Flight 493, heading south, and the SNB-1, heading west, collided over the Key West NAS at an estimated altitude of 4,000 feet.

Investigation

Civil Aeronautics Authority (CAA) investigators determined that there were no mechanical problems with either aircraft. Both were operating under

visual flight rules In aviation, visual flight rules (VFR) is a set of regulations under which a pilot operates an aircraft in weather conditions generally clear enough to allow the pilot to see where the aircraft is going. Specifically, the weather must be better tha ...

, as the weather at the time of the crash was clear and calm. The probable cause of the accident was given by the CAA as a failure on the parts of both air crews to exercise due vigilance in looking for and avoiding conflicting traffic. The CAA also called for a review of

air traffic control Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through a given section of controlled airspace, and can provide advisory services to aircraft in non-controlled air ...

procedures.

External links and references

Civil Aeronautics Board The Civil Aeronautics Board (CAB) was an agency of the federal government of the United States, formed in 1940 from a split of the Civil Aeronautics Authority and abolished in 1985, that regulated aviation services (including scheduled passe ...

br>Aircraft Accident Report on the collisionArchive
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{{DEFAULTSORT:Cubana De Aviacion Flight 493 Airliner accidents and incidents in Florida Aviation accidents and incidents in the United States in 1951 Mid-air collisions involving airliners Mid-air collisions involving military aircraft Mid-air collisions in the United States Accidents and incidents involving the Douglas DC-4 Accidents and incidents involving the Beechcraft Model 18 493 Cuba–United States relations History of Key West, Florida 1951 in Florida April 1951 in the United States

Flight history

Investigation

See also

External links and references