The wreckage of the Pan American Airways Clipper Endeavor, which crashed in April 1952 killing 52 of 69 people on board, has been found after 74 years. The disaster led to the implementation of vital flight safety measures.

After decades of searching, the wreck of the "Clipper Endeavor" has been discovered off the coast of Puerto Rico; the 1952 accident, which killed 52 people, led to significant reforms in flight safety.

The wreck of a Pan-Am Clipper Endeavor DC-4, which crashed off Puerto Rico in 1952 and was lost for 74 years, has been discovered. Its crash led to the standardized pre-flight safety instructions used today.

The mystery surrounding the disappearance of Pan-Am Flight 526A, the 'Clipper Endeavor', 74 years ago has been solved, with historians and deep-sea researchers locating the wreck at a depth of nearly 600 meters off Puerto Rico, where 52 people died in 1952.

The wreckage of the Pan Am Clipper Endeavor, whose 1949 crash led to mandatory pre-flight safety briefings, has been discovered 74 years after the incident.

The Pan Am Clipper Endeavor, which crashed off Puerto Rico and sank to the Atlantic Ocean floor, has been found more than 70 years later, an incident that resulted in 52 deaths out of 69 people aboard.

Researchers have located the wreckage of the 'Clipper Endeavor,' a plane that crashed over the Atlantic in 1952, killing 52 people and significantly influencing modern aviation safety.

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