1977_Israeli_Air_Force_Sikorsky_CH-53_Sea_Stallion_crash
1977 Israeli Air Force Sikorsky CH-53 Sea Stallion crash
Helicopter crash
On May 10, 1977, an Israeli Air Force Sikorsky CH-53 Yas'ur helicopter crashed during an exercise in the Jordan Valley, killing all 54 on board (including the 10-member flight crew). The disaster became known as Ason HaNun-Daled, or "Disaster of the 54".[1]