Accident Sequence
The helicopter impacted terrain following an uncontrolled descent from cruise flight, resulting in its destruction. A witness reported that the helicopter did not appear to have maneuvering difficulty but continued to lose altitude. The witness noted the propeller losing speed and observed the helicopter lose half of its altitude very quickly. Before the crash, the blades appeared to stop rotation, and the witness counted two blades.
Investigation Findings
An on-scene investigation revealed no pre-impact anomalies with the helicopter. Testing of the magnetos, fuel distribution valve, distribution lines, fuel injectors, fuel servo, hydraulic system, and the engine showed no pre-impact anomalies. Analysis of the liquid from the fuel servo indicated the presence of aviation gasoline.
Pilot and Passengers
On the back of the student pilot's certificate, bold lettering stated, "Passenger-Carrying Prohibited." Two passengers were fatally injured.
Toxicological Testing
Toxicological testing detected 0.377 (ug/ml, ug/g) amphetamine in blood, 10.479 (ug/ml, ug/g) amphetamine in urine, 0.626 (ug/mL, ug/g) fluoxetine in blood, fluoxetine in urine, and norfluoxetine in blood and urine. According to FAR 91.17, no person may act as a crewmember while using any drug that affects the person's faculties contrary to safety. The Forensic Toxicology Information Sheet noted that amphetamine is a widely used drug of abuse, also prescribed for narcolepsy and attention deficit disorder; fluoxetine is a prescription antidepressant; norfluoxetine is a metabolite of fluoxetine; and amphetamine is a stimulant often known informally as "speed."
Weather Conditions
Weather at the time was wind 200 degrees at 6 knots, visibility 8 statute miles, and sky condition clear.