NTSB: Strut fatigue, inadequate landing gear inspection cause... - Hawaii News Now - KGMB and KHNL

NTSB: Strut fatigue, inadequate landing gear inspection cause of 2009 Turtle Bay helicopter crash

KAHUKU (HawaiiNewsNow) - The National Transportation Safety Board (NTSB) released its findings in the Turtle Bay Resort helicopter crash that happened in Nov. 2009.

According to the NTSB, fatigue failure of the landing gear strut and inadequate inspection of the landing gear was the probable cause of the crash.

As the McDonnell Douglas Heli Co 369E prepared for take off, the left rear landing skid strut collapsed. The helicopter tilted to the left rear, causing the tail skid and vertical stabilizer to strike the ground.

Based on a post-crash examination, the NTSB found that the left rear strut fractured due to a fatigue crack in one of the bolt holes used to secure the strut to the drag brace. The examination also showed that the intact right rear strut had fatigue cracks growing outwards from the two bolt holes.

According to the NTSB, the struts were inspected 13 days before the accident in accordance with the manufacturer's mandatory maintenance inspection program.

The pilot and four passengers aboard for a sightseeing tour were not injured in the crash.

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