AVIATION ACCIDENT: Turbine blade fatigue caused Catalina helicopter accident

May 25, 2010

Los Angeles - The National Transportation Safety Board (NTSB) has concluded that a turbine fatigue fracture was the most likely cause of the May 24, 2008 helicopter crash on Santa Catalina Island.

The air-taxi helicopter accident killed three people and seriously injured three others.

NTSB commented that the four turbine blades showed fissure. The blades supposed to support the Honeywell Aerospace engine. The AS350-D helicopter was manufactured with Aerospatiale brand.

Federal authorities agreed with the investigation results for Island Express helicopter.

Witnesses reported that they heard a loud sound and fire coming out of the engine as the helicopter approach Two Harbors.

A survivor asserted that after the bang was heard, the pilot pronounced that he will conduct an autorotation. This safety emergency process may help control the speed though the engine lost its power. The pilot managed to avoid power lines and buildings before hitting the open field.