Preliminary Accident Reports

February 2010 Issue

December 6, 2009, Temple Bar, Ariz., Aerospatiale AS 355F1

At about 1030 Pacific time, the helicopter was substantially damaged when its left engine cowling door opened while airborne. The commercial pilot and six passengers were not injured. Visual conditions prevailed for the Part 135 air-tour flight. During cruise, the pilot heard a "thumping" noise followed by slight feedback within the cyclic control. The pilot contacted a second company helicopter to have them visually inspect the helicopter in-flight.

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