NTSB Identification: WPR10LA452
14 CFR Part 137: Agricultural
Accident occurred Tuesday, September 07, 2010 in Winters, CA
Probable Cause Approval Date: 10/04/2012
Aircraft: AEROSPATIALE SA315, registration: N17285
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The pilot reported that, after takeoff and about 200 feet above ground level, the engine decelerated to an idle power setting. The pilot initiated an autorotation, but, due to the low height above the ground, the helicopter landed hard. During the postaccident engine examination, the fuel pump and fuel governor were removed and placed on a test bench for an operational check. Both the fuel pump and governor performed within normal parameters. Further examination found non-metallic particles within the fuel filter; however, their presence would not have reduced the fuel flow and contributed to the engine deceleration event. An examination of the remaining engine components and airframe systems revealed no mechanical failures or malfunctions that would preclude normal operation. The reason for the loss of engine power could not be determined.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

A loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.

Full narrative available

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