Pan Am Flight 845/26

Pan Am Flight 845/26 was a four-engined Boeing 377 Stratocruiser named Clipper United States and registered as N1032V. It departed Portland International Airport in Oregon on a flight to Honolulu International Airport in Hawaii on March 26, 1955. The aircraft was en route and about 35 mi off the Oregon coast when at 11:12 Pacific Standard Time the No. 3 engine and propeller tore loose from the wing causing a loss of control. The aircraft was ditched.

The aircraft floated for twenty minutes before sinking in 1600 m of water. Approximately two hours after the aircraft ditched, the United States Navy attack transport USS Bayfield (APA-33) arrived on the scene and rescued the 19 survivors. Four people died.

The probable cause was failure of No. 3 propeller which caused the engine to detach and the aircraft to become uncontrollable.

The experience provided lessons that helped prevent any casualties in another ditching the following year, when Pan Am Flight 6 sank between Honolulu and San Francisco.