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.

The wreckage from a Pan Am plane crash in the ocean 74 years ago that helped lead to requirements for the passenger safety briefings on every flight today has been found off the coast of Puerto Rico.

The Clipper Endeavor was found 2,000ft (610m) below sea level off the coast of Puerto Rico with a sonar-equipped drone.

Wreckage was found from a Pan Am flight that crashed into the water off Puerto Rico in 1952, killing 52 people and leading to passenger safety briefing requirements.

An aviation search team has found the wreckage of a Pan Am flight that crashed into the waters off Puerto Rico 74 years ago, killing 52 people and leading to sweeping aviation safety reforms, includin...