NTSB Identification: DEN86LA040.
The docket is stored on NTSB microfiche number 30670.
Accident occurred Friday, December 06, 1985 in BOZEMAN, MT
Aircraft: HELIO H-391B, registration: N4101D
Injuries: 2 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.

ACCORDING TO PERSONNEL IN THE AREA, THE PLT RADIOED HE HAD SMOKE IN THE COCKPIT AND WAS RETURNING TO GALLANTIN FIELD, HIS DEPARTURE POINT. LATER, THE PLT TRANSMITTED THAT THE ENG LOST TOTAL PWR AND HE WAS MAKING A FORCED LANDING. DURING THE INVESTIGATION, IT WAS ASCERTAINED THE WIRING BETWEEN THE INSTRUMENT PANEL AND THE MAGNETOS HAD BURNED EXTENSIVELY AND THE MAGNETO 'P' LEAD HAD SHORTED OUT.

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

IGNITION SYSTEM,MAGNETO..FAILURE,TOTAL



Contributing Factors

ELECTRICAL SYSTEM,ELECTRIC WIRING..BURNED


Contributing Factors

MAINTENANCE,ANNUAL INSPECTION..INADEQUATE..OTHER MAINTENANCE PERSONNEL


Contributing Factors

ELECTRICAL SYSTEM,ELECTRIC WIRING..SHORTED

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