r/CatastrophicFailure • u/DariusPumpkinRex • 6h ago
Engineering Failure On April 11th, 1952, a Douglas DC-4 flying as Pan Am Flight 526A took off from Puerto Rico to New York City and ditched in rough seas 9 minutes later after engines 3 and 4 failed, the plane breaking apart and sinking 3 minutes later. 52 of 69 onboard died. The wreckage was only just recently found.
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As the plane, named "Clipper Endeavor" was going down, Captain John Burn alerted the control tower that two engines had failed and that he would attempt a water landing seven miles North-Northwest from Isla Grande. The tower passed the message along to the United States Coast Guard, who deployed two PBY-5A Catalina flying boats, one of which was pulled from maintenance and underwent rescue operations with no auxiliary power unit or bilge pump due to how serious and urgent the situation was, all under the command of Lieutenant Commander Ken Bilderback.
The USCG buoy tender Bramble with medical staff onboard and SA-16 amphibious aircraft from Ramey Air Force Base were also deployed, resulting in the successful rescue of all 17 survivors, though the survivors onboard the second Catalina had to be transferred to the Bramble, as the Catalina had taken on water due to it's lack of a bilge pump.
Faulty engine parts and the pilots' attempt to re-establish the climb without the remaining engine using all of the remaining power were found to be the cause of the accident, though Captain Burn was cleared of any wrong-doing, as the defective parts and improper maintenance were found to be the primary cause of the crash.
Several of the servicemen involved in the rescue were rewarded for their efforts; Lieutenant Commander Bilderback was awarded his second Air Medal. His co-pilot, Lieutenant Commander Jack Natwig, was decorated with the Silver Lifesaving Medal for jumping into the sea to rescue a small child, while Air crew members Bill Pinkston, Jim Tierney, Peter Eustes, and Raymond Evans were all commended by the Commandant of the USCG. Of the 52 who died when the plane sank, 39 of them are still on the wreck and there are no current plans for recovery.