NTSB Identification: CHI07LA113.
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Accident occurred Sunday, April 22, 2007 in Cotter, AR
Probable Cause Approval Date: 02/28/2008
Aircraft: Murphy Aircraft Mfg, Ltd. SR3500 Moose, registration: N360MM
Injuries: 2 Fatal.

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 experimental amateur-built airplane sustained substantial damage on impact with power lines and terrain during approach. A post impact fire occurred. A sheriff's report stated that witnesses observed the airplane on a downwind leg. A witness reported that there were "'dust devils' everywhere. The wind was changing direction every few minutes/seconds, with very strong gusts at times." The airplane made a steep right turn and the witnesses reported that the right wing "dropped." The recorded wind was 180 degrees at 10 knots gusting to 19 knots. An on-scene examination of the wreckage revealed electrical power lines were damaged and the aircraft sustained damage consistent with a post impact fire.

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

The pilot not maintaining airplane control and airspeed during the approach. Factors were the gusty wind conditions, the inadvertent stall the pilot encountered, and the power lines that were impacted during the uncontrolled descent.

Full narrative available

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