NTSB Identification: WPR09LA026
14 CFR Part 91: General Aviation
Accident occurred Tuesday, October 28, 2008 in Cedar Fort, UT
Probable Cause Approval Date: 05/06/2009
Aircraft: SILFVAST STARDUSTER TOO, registration: N78DS
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.

Multiple witnesses in the vicinity of the accident site reported observing the accident airplane performing a series of aerobatic maneuvers at a low altitude. The airplane was observed in what the witnesses described as a "flat spin" about 1,000 feet above ground level that continued until ground impact. One witness stated that he heard the engine running until the airplane impacted the ground. The airplane was consumed in a postimpact ground fire and all major components of the airplane were located at the accident site. No anomalies were noted with the airplane flight control system during an examination of the wreckage.

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

The pilot's failure to maintain an adequate airspeed and/or angle of attack to avoid a stall/spin during an aerobatic maneuver.

Full narrative available

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