This landmark discovery sheds new light on the fate of the aircraft whose tragic legacy forever transformed modern air travel. Due to the extreme water depths, the wreck of Clipper Endeavor remained far beyond the reach of investigators. “I first learned about Clipper Endeavor while researching an entirely different Pan Am crash and was astonished that such an important story had largely faded from public memory,” Matthews said. “Every time you step onboard an airplane today, you are safer because of what happened to Clipper Endeavor and her passengers three quarters of a century ago,” said Josh Gates. The search for Clipper Endeavor and the full story behind this historic discovery will be featured in a forthcoming episode of Discovery Channel’s Expedition Unknown later this year.