• On 4 May 1985,
Douglas DC-3C N157U of Perris Valley Paracenter was damaged beyond economic repair when the port engine lost a propeller blade on take-off, causing the engine to be torn from its mountings. There were no injuries among the two crew and 31
parachutists on board. A mandatory
Airworthiness Directive had been issued concerning the propeller, but an investigation found no evidence that it had been complied with. • On April 22, 1992, a skydiving aircraft lost engine power during takeoff and crashed. The plane never climbed more than 50 feet above the runway. There were 22 on board, sixteen of whom (two pilots and 14 skydivers, including 2 Dutch nationals) died in the crash. Two other Dutch skydivers survived, as did three Americans and a South African. The
National Transportation Safety Board (NTSB) attributed engine failure to aviation fuel contaminated by improper fuel handling. The pilots' response to engine failure also contributed to the crash. Apparently there was a design flaw in the Otter that facilitated accidental beta configuration of the propellers in an emergency situation. In a flight simulator, shortly after the crash, two other very experienced and current Otter pilots did the same thing as the pilot on the ill-fated flight. • On 24 May 2017, a
de Havilland Canada DHC-6 Twin Otter crashed on landing after a skydiving flight. The pilot and trainee pilot were uninjured but the right wing was torn from the aircraft.. ==References==