Incident Details
A helicopter was being used to support seismic operations in the area. After dropping off several bags of equipment, the pilot executed a right pedal turn to move away from a steep hillside. The helicopter was at an altitude of 200 feet above ground level (AGL) and an airspeed of 20 to 30 knots. During the turn, the engine lost power, and the helicopter began descending. The pilot initiated an autorotation to manage the descent. The helicopter landed hard on the right rear skid, which collapsed, causing the helicopter to drop onto its right side.
Examination Findings
Post-incident examination revealed a total of 2 quarts of fuel in the fuel cells. No water or contaminants were detected in the fuel. One ounce of fuel was drained from the engine fuel filter, and 3 ounces of fuel were drained from the engine-driven fuel pump filter bowl. No fuel was found in the engine supply line. No other abnormalities or contaminants were reported.
The examination did not specify any other mechanical or structural issues. The helicopter's right rear skid collapsed during the hard landing, resulting in the helicopter resting on its right side.