The crash in 1952 killed 52 people and led to requirements for the passenger safety briefings given on every commercial flight.

Seventy-four years after a Pan Am flight crashed into the water off Puerto Rico, killing 52 people and prompting sweeping reforms including preflight passenger safety briefings, an aviation search ...

Discovery Channel announces the intact wreckage of 1952 Pan Am Clipper Endeavor located off Puerto Rico. 52 drowned, 17 survived.

The deaths of 52 people on the Clipper Endeavor led to the introduction of mandatory pre-flight safety briefings.

All 69 passengers and crew members on board the plane survived the initial crash in 1952, but 52 of them later died after the plane's tail section broke off and the fuselage sank into the ocean.

This deadly Pan American crash just north of Puerto Rico sparked today's mandatory pre-flight safety briefings.

The plane, the Clipper Endeavor, was carrying 69 passengers and crew when it made a hard landing on water after losing both engines less than 10 minutes after takeoff.

Undersea drone locates site of Clipper Endeavor disaster that contributed to introduction of briefings on emergency exits and life vests ...

Some 74 years after a Pan American Airways flight crashed into the water off the coast of ​Puerto Rico, an aviation search team said it ‌found the wreckage sitting on the ocean floor.

A mystery surrounding a missing airplane has finally been solved. After 74 years, we finally know what happened to Pan Am’s Clipper Endeavor. [ Read more trending news ] The plane, a Douglas DC-4, ...

The Pan American Airways Clipper Endeavor crashed in April 1952 after multiple engine failures forced a water landing The wreckage of a Pan Am plane has been found 74 years after it crashed and sank ...

An aviation search team has found the wreckage of a plane that crashed in the Atlantic Ocean more than seven decades ago, the Discovery Channel announced in a TODAY exclusive. The team, whose efforts ...