Israeli Air Force determined that corrosion lead to crash of AS565

The Israeli Air Force has wrapped up its investigations into an AS565 naval helicopter crash that killed both pilots on Jan. 3.

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Oren Rozen, CC BY-SA 4.0, via Wikimedia Commons


Investigators found that aluminum parts deep inside the helicopter’s engine had corroded and a turbine blade had broken off while leading to a fire.

The manufacturer does the inspection of the components and this component is not part of routine checks stipulated by the helicopter’s manufacturer.

Investigators also faulted the military personnel for not carrying out routine washing of the helicopter that complies with the manufacturer’s instructions. Aircraft operating in a sea environment require frequent washing to remove the salt accumulation.

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