| Kastrup, Denmark|
26 January 1947
| Failure to properly prepare aircraft for flight|
1947 Avianca Douglas, United Airlines Flight 521, Eastern Air Lines Flight 605, 1947 Croydon Dakota a, United Airlines Flight 608
1947 KLM Douglas DC-3 Copenhagen accident Wikipedia
The 1947 KLM Douglas DC-3 Copenhagen accident was the crash of a KLM Royal Dutch Airlines flight from Amsterdam to Stockholm via Copenhagen on 26 January. The accident occurred shortly after the Douglas DC-3 took off from Kastrup in Denmark. All 22 passengers and crew on board were killed in the accident.
Among those killed in the crash were Prince Gustaf Adolf of Sweden (at the time of his death, second in line to the Swedish throne), U.S. opera singer Grace Moore, and Danish actress Gerda Neumann. Prince Gustaf Adolf was the father of the present king of Sweden Carl XVI Gustaf. A hundred thousand people attended the funeral. Moore's body was flown to Paris on another KLM aircraft, and she was buried on 3 February 1947 with more than 500 people in attendance.
The probable cause of the crash was determined to be failure to remove the gust locks that had secured the aircraft's elevators while it was parked. It was the worst aviation accident in Denmark at the time of the crash.